{"title":"Dennerle","description":"\u003cp\u003eShop Dennerle at Poseidon's Pets of Picayune.\u003c\/p\u003e","products":[{"product_id":"dennerle-accessory-set-for-nano-corner-filter","title":"Dennerle Accessory Set for Nano Corner Filter","description":"\u003cp\u003eSet of accessories and replacement parts for the Dennerle Nano Corner Filter.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881735872805,"sku":"DE-NCFACC","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3259.jpg?v=1790050092"},{"product_id":"dennerle-all-in-one-elixier-100-ml","title":"Dennerle All in One! 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Use it in freshwater aquariums where one bottle needs to support livestock, plants, and water clarity without managing several separate additives.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFreshwater aquarium additive for fish, shrimp, plants, and water care.\u003c\/li\u003e\n\u003cli\u003eContains 12 coordinated active complexes in one formula.\u003c\/li\u003e\n\u003cli\u003eIncludes carbon, iron, plant nutrients, and nutrient stabilizers.\u003c\/li\u003e\n\u003cli\u003eIncludes amino acids, vitamins, trace elements, and herbal extracts.\u003c\/li\u003e\n\u003cli\u003eIncludes aloe vera, dexpanthenol, iodine, and filter booster.\u003c\/li\u003e\n\u003cli\u003eSupports colorful fish and shrimp, green plants, and clear water.\u003c\/li\u003e\n\u003cli\u003e100mL bottle size for small freshwater aquariums and weekly care routines.\u003c\/li\u003e\n\u003cli\u003eDosage is 20mL per 100 liters of aquarium water once per week.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal For\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFreshwater community aquariums with fish, shrimp, and live plants.\u003c\/li\u003e\n\u003cli\u003eNano and small planted tanks where a simple weekly care routine is preferred.\u003c\/li\u003e\n\u003cli\u003eHobbyists who want one additive for livestock support, plant care, and water clarity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881735938341,"sku":"DE-AIOE-100","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3324.jpg?v=1790050092"},{"product_id":"dennerle-all-in-one-elixier-250-ml","title":"Dennerle All in One! Elixier, 250 ml","description":"\u003ch2\u003eSimple Care for Fish, Shrimp, Plant, Filter, and Water\u003c\/h2\u003e \u003cp\u003eThe Dennerle All in One! Elixir is a blend of 12 active complexes, including carbon, iron, plant nutrients, nutrient stabilizers, amino acids, vitamins, trace elements, herbal extracts, aloe vera, dexpanthenol, iodine, and filter booster. It is designed to promote healthy and vibrant fish and shrimp, lush green plants, and clear water. Visible results can be observed in just a few weeks. The product is easy to use.\u003c\/p\u003e \u003ch3\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eWith 12 carefully coordinated active complexes : Carbon, iron, plant nutrients, nutrient stabilizers, amino acids, vitamins, trace elements, herbal extracts, aloe vera, dexpanthenol, iodine, and filter booster.\u003c\/li\u003e \u003cli\u003eFor colorful fish and shrimp, lush green plants, and clear, healthy water\u003c\/li\u003e \u003cli\u003eVisible success after just a few weeks\u003c\/li\u003e \u003cli\u003eSimple to use\u003c\/li\u003e \u003cli\u003eAvailable in three sizes: 100ml, 250ml, and 500ml\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881736003877,"sku":"DE-AIOE-250","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3325.jpg?v=1790050092"},{"product_id":"dennerle-all-in-one-elixier-500-ml","title":"Dennerle All in One! Elixier, 500 ml","description":"\u003ch2\u003eSimple Care for Fish, Shrimp, Plant, Filter, and Water\u003c\/h2\u003e \u003cp\u003eThe Dennerle All in One! Elixir is a blend of 12 active complexes, including carbon, iron, plant nutrients, nutrient stabilizers, amino acids, vitamins, trace elements, herbal extracts, aloe vera, dexpanthenol, iodine, and filter booster. It is designed to promote healthy and vibrant fish and shrimp, lush green plants, and clear water. Visible results can be observed in just a few weeks. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881736462629,"sku":"DE-AIOE-500","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3326.jpg?v=1790050092"},{"product_id":"dennerle-aqua-elixier-250-ml","title":"Dennerle Aqua Elixier, 250 ml","description":"\u003ch2\u003eWater Conditioner for Freshwater Aquariums\u003c\/h2\u003e \u003cp\u003eWhen changing the water in your aquarium, it's important to use a water conditioner. This will neutralize harmful substances like chlorine and heavy metals that are often found in tap water, and also add the necessary active ingredients that may be missing. The conditioner is made with high-quality protective colloids and Moringa tree leaf extract to help protect your fish's gills, mucous membranes, and fins. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881736495397,"sku":"DE-AEX-250","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-36847.jpg?v=1790050092"},{"product_id":"dennerle-aqua-elixier-500-ml","title":"Dennerle Aqua Elixier, 500 ml","description":"\u003ch2\u003eWater Conditioner for Freshwater Aquariums\u003c\/h2\u003e \u003cp\u003eWhen changing the water in your aquarium, it's important to use a water conditioner. This will neutralize harmful substances like chlorine and heavy metals that are often found in tap water, and also add the necessary active ingredients that may be missing. The conditioner is made with high-quality protective colloids and Moringa tree leaf extract to help protect your fish's gills, mucous membranes, and fins. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881736560933,"sku":"DE-AEX-500","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-36848.jpg?v=1790050092"},{"product_id":"dennerle-aquarium-starter-rapid-200-ml","title":"Dennerle Aquarium Starter Rapid, 200 ml","description":"\u003cp\u003e\u003cstrong\u003eMixed Culture of Live Cleaning and Filter Bacteria\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eDennerle Aquarium Starter Rapid is a highly effective product that quickly establishes new aquariums. It consists of live filter bacteria and bacteria booster nutrient solution. The live filter bacteria break down pollutants and the nutrient solution helps the bacteria grow and reproduce. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881736593701,"sku":"DE-ASR","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-36849.jpg?v=1790050092"},{"product_id":"dennerle-bacto-elixier-bio-50-ml","title":"Dennerle Bacto Elixier Bio, 50 ml","description":"\u003ch2\u003eMixed Culture of Living Cleaning and Filter Bacteria\u003c\/h2\u003e \u003cp\u003eDennerle Bacto Elixier Bio is a liquid concentrate that can be used to activate filter material and substrate in an aquarium. It has guaranteed 100 million bacteria per milliliter at filling, which helps degrade fish excretions, food and plant debris and remove poisonous substances such as ammonia and nitrite. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881736724773,"sku":"DE-BEX-250","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-36850.jpg?v=1790050094"},{"product_id":"dennerle-bacto-elixier-fb7-500-ml","title":"Dennerle Bacto Elixier FB7, 500 ml","description":"\u003ch2\u003eHighly Effective Live-cleaning Bacteria\u003c\/h2\u003e \u003cp\u003eDennerle Bacto Elixier is an active concentrate that helps to maintain clear and natural water in an aquarium. This concentrate is designed to break down fish excrement and leftover food while also removing harmful toxins such as ammonia and nitrite. Additionally, it improves filter performance and increases the self-cleaning power of your aquarium. The best part? It works 100% organically! 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881736855845,"sku":"DE-B120CS","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3268.jpg?v=1790050095"},{"product_id":"dennerle-bio-60-complete-set","title":"Dennerle BIO 60 Complete-Set","description":"\u003cp\u003eDennerle BIO 60 Complete-Set\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737183525,"sku":"DE-BCOB","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3269.jpg?v=1790050092"},{"product_id":"dennerle-bio-co2-supply-bottle-twin-pack","title":"Dennerle BIO CO2 Supply Bottle, twin pack","description":"\u003cp\u003eDennerle BIO CO2 Supply Bottle, twin pack\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737347365,"sku":"DE-BCNS","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3329.jpg?v=1790050092"},{"product_id":"dennerle-carbo-care-bio-250-ml","title":"Dennerle Carbo Care Bio, 250 ml","description":"\u003ch2\u003eBiological Carbon Fertilizer for Aquarium Plants\u003c\/h2\u003e \u003cp\u003eBoost your planted aquarium's growth with Dennerle Carbo Care Bio liquid solution. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737380133,"sku":"DE-CCB-250","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3318.jpg?v=1790050092"},{"product_id":"dennerle-carbo-care-bio-500-ml","title":"Dennerle Carbo Care Bio, 500 ml","description":"\u003ch2\u003eBiological Carbon Fertilizer for Aquarium Plants\u003c\/h2\u003e \u003cp\u003eBoost your planted aquarium's growth with Dennerle Carbo Care Bio liquid solution. 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Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737445669,"sku":"DE-CCB-500","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3319.jpg?v=1790050092"},{"product_id":"dennerle-carbo-care-bio-daily-100-ml","title":"Dennerle Carbo Care Bio Daily, 100 ml","description":"\u003ch2\u003eBiological Carbon Fertilizer for Aquarium Plants\u003c\/h2\u003e \u003cp\u003eBoost your planted aquarium's growth with Dennerle Carbo Care Bio liquid solution. 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Carbo Care Pro can help by providing plants with readily available carbon. From mosses to echinoderms and cryptochromes to fast-growing stem plants, all aquarium plants can benefit from Carbo Care Pro. With consistent use, plants become fuller and stronger, with larger and more colorful leaves. Within just a few weeks, you'll start to see the positive effects of Carbo Care Pro on the growth of your plants. As plants become healthier and stronger, they'll be better able to compete with unwanted algae. The result is a healthier, greener, and more beautiful aquarium overall.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow Carbo Care Pro Works?\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003ePlants rely on photosynthesis as the foundation of their metabolism. During this process, solar energy is captured and stored in carbon compounds, such as sugar. These energy-rich compounds serve as a universal source of energy or can be used to create other necessary compounds. For instance, sugar can be \"re-burned\" for energy or processed into cellulose, which gives trees their strength and is made up of long sugar chains. The citric acid cycle is the central hub of plant metabolism, where various substances are introduced to produce necessary compounds such as carbohydrates, fats, proteins, and vitamins. Carbo Care Pro is a product that contains active ingredients found in plant metabolism. These ingredients are absorbed by the plant and used as building materials or energy sources to promote faster and stronger growth. Additionally, Carbo Care Pro's organic active substances based on carbon are easily degraded by bacteria in aquariums, leaving behind only carbon dioxide and water. 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The application concentration is sufficient to promote plant growth and is readily biodegradable. Any excess substance not absorbed by plants is consumed by filter bacteria, leaving behind only CO2 that benefits plants and water. It is safe to use continuously, and there is no accumulation of glutaraldehyde in the aquarium. Even accidental double dosages will not have negative effects, but it is recommended to follow the recommended dosage to avoid overdosing.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737576741,"sku":"DE-CCP-250","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3320.jpg?v=1790050092"},{"product_id":"dennerle-carbo-care-pro-500-ml","title":"Dennerle Carbo Care Pro, 500 ml","description":"\u003ch2\u003eCarbon Fertilizer for Aquarium Plants\u003c\/h2\u003e \u003cp\u003eBoost your planted aquarium's growth with Dennerle Carbo Care Pro liquid solution. 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Carbo Care Pro can help by providing plants with readily available carbon. From mosses to echinoderms and cryptochromes to fast-growing stem plants, all aquarium plants can benefit from Carbo Care Pro. With consistent use, plants become fuller and stronger, with larger and more colorful leaves. Within just a few weeks, you'll start to see the positive effects of Carbo Care Pro on the growth of your plants. As plants become healthier and stronger, they'll be better able to compete with unwanted algae. The result is a healthier, greener, and more beautiful aquarium overall.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow Carbo Care Pro Works?\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003ePlants rely on photosynthesis as the foundation of their metabolism. During this process, solar energy is captured and stored in carbon compounds, such as sugar. These energy-rich compounds serve as a universal source of energy or can be used to create other necessary compounds. For instance, sugar can be \"re-burned\" for energy or processed into cellulose, which gives trees their strength and is made up of long sugar chains. The citric acid cycle is the central hub of plant metabolism, where various substances are introduced to produce necessary compounds such as carbohydrates, fats, proteins, and vitamins. Carbo Care Pro is a product that contains active ingredients found in plant metabolism. These ingredients are absorbed by the plant and used as building materials or energy sources to promote faster and stronger growth. Additionally, Carbo Care Pro's organic active substances based on carbon are easily degraded by bacteria in aquariums, leaving behind only carbon dioxide and water. 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The application concentration is sufficient to promote plant growth and is readily biodegradable. Any excess substance not absorbed by plants is consumed by filter bacteria, leaving behind only CO2 that benefits plants and water. It is safe to use continuously, and there is no accumulation of glutaraldehyde in the aquarium. Even accidental double dosages will not have negative effects, but it is recommended to follow the recommended dosage to avoid overdosing.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. 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Additionally, the set includes an adjustment knob that allows for slow and precise CO2 supply, allowing users to fine-tune the levels based on their specific needs. 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Store in a well-ventilated place.\u003c\/li\u003e \u003cli\u003eKeep out of the reach of children.\u003c\/li\u003e \u003cli\u003eHandle with care. Do not throw.\u003c\/li\u003e \u003cli\u003eDo not open by force.\u003c\/li\u003e \u003cli\u003eStore in a cool place. Protect from heat above 50 °C. Do not store in cellars.\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eDo not inhale CO2 gas, which has a suffocating effect in high concentrations. If gas escapes, ventilate the room well.\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737740581,"sku":"DE-CPWE400","price":258.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3275.jpg?v=1790050096"},{"product_id":"dennerle-carbo-power-flex400","title":"Dennerle Carbo Power Flex400","description":"\u003ch2\u003eDennerle Carbo POWER Flex400 Set\u003c\/h2\u003e \u003cp\u003eThe Dennerle Carbo POWER Flex400 Set is specifically designed to cater to freshwater-planted aquariums that are up to 400 liters (105 US Gals) in size. With the included adapter, the Flex system offers maximum flexibility, allowing the operation of both disposable and reusable bottles (both not included). This set comes with everything you need for convenient CO2 supply in your aquarium. The CO2 disposable cylinder connection makes it easy to use, while the dynamic Valve Control (DVC) feature ensures a steady and stable supply of CO2, creating the best conditions for healthy aquatic plant growth. With the adjustment knob, you can control the CO2 supply speed and amount, for precise and gradual delivery based on your specific needs. This set provides the essential building blocks for photosynthesis, delivering carbon to your aquarium and promoting healthy plant growth.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eComplete set for aquariums up to 400L (105 US Gals)\u003c\/li\u003e \u003cli\u003eConnection suitable for the CO2 disposable and refillable cylinders\u003c\/li\u003e \u003cli\u003eWith precision pressure reducer made of milled aluminum\u003c\/li\u003e \u003cli\u003eDynamic Valve Control ( DVC ) for a constant CO2 supply\u003c\/li\u003e \u003cli\u003eTwo manometers as indicators for the cylinder and working pressure, as well as an adjustment knob and needle valve\u003c\/li\u003e \u003cli\u003eCarbon, the most important building block for photosynthesis\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCO2 pressure reducer Carbo Power\u003c\/li\u003e \u003cli\u003eSpecial CO2 check valve\u003c\/li\u003e \u003cli\u003eCO2 Diffuser Flipper\u003c\/li\u003e \u003cli\u003eAdapter for reusable CO2 bottles\u003c\/li\u003e \u003cli\u003eSpecial CO2 hose, 2m\u003c\/li\u003e \u003cli\u003eCarbo Test Crystal\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eContains gas under pressure; may explode if heated.\u003c\/li\u003e \u003cli\u003eProtect from sunlight. Store in a well-ventilated place.\u003c\/li\u003e \u003cli\u003eKeep out of the reach of children.\u003c\/li\u003e \u003cli\u003eHandle with care. Do not throw.\u003c\/li\u003e \u003cli\u003eDo not open by force.\u003c\/li\u003e \u003cli\u003eStore in a cool place. Protect from heat above 50 °C. Do not store in cellars.\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eDo not inhale CO2 gas, which has a suffocating effect in high concentrations. If gas escapes, ventilate the room well.\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737806117,"sku":"DE-CPFX400","price":215.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3273.jpg?v=1790050095"},{"product_id":"dennerle-carbo-soda-m200","title":"Dennerle Carbo Soda M200","description":"\u003ch2\u003eCO2 Fertilizer System for Soda Systems, Includes Soda CO2 Cylinder\u003c\/h2\u003e \u003cp\u003eThe Dennerle Carbo Soda M200 is a practical alternative to traditional CO2 fertilization systems! This system allows hobbyists to utilize a standard soda CO2 screw cylinder as a source of CO2, which offers the benefit of high availability and easy exchange. Consistent and adequate CO2 supply is crucial for the well-being of aquarium plants and the upkeep of your aquarium. With Carbo Soda, optimal conditions can be easily achieved for both plants and inhabitants of a freshwater aquarium.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eComplete set for aquariums up to 200L (52 US Gals)\u003c\/li\u003e \u003cli\u003eConnection suitable for all regular Soda cylinders\u003c\/li\u003e \u003cli\u003eWith precision pressure reducer made of milled aluminum\u003c\/li\u003e \u003cli\u003eDynamic Valve Control ( DVC ) for a constant CO2 supply\u003c\/li\u003e \u003cli\u003eIntegrated manometer as an indicator for the working pressure\u003c\/li\u003e \u003cli\u003eCarbon, the most important building block for photosynthesis\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSoda CO2 Cylinder, 425g\u003c\/li\u003e \u003cli\u003eCO2 pressure reducer Carbo Soda\u003c\/li\u003e \u003cli\u003eSpecial CO2 hose, 2m\u003c\/li\u003e \u003cli\u003eSafe stand\u003c\/li\u003e \u003cli\u003eSpecial CO2 check valve\u003c\/li\u003e \u003cli\u003eCO2 Diffusor Ultra M\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eContains gas under pressure; may explode if heated.\u003c\/li\u003e \u003cli\u003eProtect from sunlight. Store in a well-ventilated place.\u003c\/li\u003e \u003cli\u003eKeep out of the reach of children.\u003c\/li\u003e \u003cli\u003eHandle with care. Do not throw.\u003c\/li\u003e \u003cli\u003eDo not open by force.\u003c\/li\u003e \u003cli\u003eStore in a cool place. Protect from heat above 50 °C. Do not store in cellars.\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eDo not inhale CO2 gas, which has a suffocating effect in high concentrations. If gas escapes, ventilate the room well.\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881737838885,"sku":"DE-CSM200","price":226.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3278.jpg?v=1790050095"},{"product_id":"dennerle-carbo-start-e200","title":"Dennerle Carbo Start E200","description":"\u003ch2\u003eDennerle Carbo START E200 Set\u003c\/h2\u003e \u003cp\u003eThe Dennerle Carbo START E200 Set is designed for freshwater aquariums up to 200 liters (52 US Gals) in size. It comes with a CO2 disposable cylinder connection for added convenience. The included precision pressure reducer is made of milled aluminum, ensuring accurate and reliable CO2 supply. The dynamic Valve Control ( DVC ) feature ensures a constant and stable CO2 supply, promoting optimal conditions for aquatic plant growth. Additionally, the set includes an adjustment knob that allows for slow and precise CO2 supply, allowing users to fine-tune the levels based on their specific needs. Carbon, the most essential building block for photosynthesis, is efficiently delivered to the aquarium through this set, providing essential nutrients for healthy plant growth.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eComplete set for aquariums up to 200L (52 US Gals)\u003c\/li\u003e \u003cli\u003eConnection suitable for the CO2 disposable cylinder\u003c\/li\u003e \u003cli\u003eWith precision pressure reducer made of milled aluminum\u003c\/li\u003e \u003cli\u003eDynamic Valve Control ( DVC ) for a constant CO2 supply\u003c\/li\u003e \u003cli\u003eAdjustment knob for slow and precise CO2 supply\u003c\/li\u003e \u003cli\u003eCarbon, the most important building block for photosynthesis\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCO2 disposable cylinder, 500g\u003c\/li\u003e \u003cli\u003eSpecial CO2 check valve\u003c\/li\u003e \u003cli\u003eCO2 Diffuser Ultra M\u003c\/li\u003e \u003cli\u003eCO2 pressure reducer Carbo Start\u003c\/li\u003e \u003cli\u003eSpecial CO2 hose, 2m\u003c\/li\u003e \u003cli\u003eCarbo Test Crystal\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eContains gas under pressure; may explode if heated.\u003c\/li\u003e \u003cli\u003eProtect from sunlight. Store in a well-ventilated place.\u003c\/li\u003e \u003cli\u003eKeep out of the reach of children.\u003c\/li\u003e \u003cli\u003eHandle with care. Do not throw.\u003c\/li\u003e \u003cli\u003eDo not open by force.\u003c\/li\u003e \u003cli\u003eStore in a cool place. Protect from heat above 50 °C. Do not store in cellars.\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eDo not inhale CO2 gas, which has a suffocating effect in high concentrations. If gas escapes, ventilate the room well.\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738002725,"sku":"DE-CSE200","price":193.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3274.jpg?v=1790050095"},{"product_id":"dennerle-carbo-start-flex200","title":"Dennerle Carbo Start Flex200","description":"\u003ch2\u003eDennerle Carbo START Flex200 Set\u003c\/h2\u003e \u003cp\u003eThe Dennerle Carbo START Flex200 Set is perfect for freshwater aquariums that are up to 200 liters (52 US Gals) in size. This set comes with an adapter that allows both disposable and reusable bottles to be used, enhancing its flexibility. The included precision pressure reducer is made of milled aluminum, ensuring an accurate and reliable supply of CO2. With the dynamic Valve Control (DVC) feature, the CO2 supply is consistent and stable, creating optimal conditions for aquatic plant growth. The adjustment knob allows for precise and slow CO2 supply, enabling users to fine-tune the levels according to their specific needs. The set effectively delivers carbon, the most essential building block for photosynthesis, to the aquarium, providing necessary nutrients for healthy plant growth.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eComplete set for aquariums up to 200L (52 US Gals)\u003c\/li\u003e \u003cli\u003eConnection suitable for the CO2 disposable and refillable cylinders\u003c\/li\u003e \u003cli\u003eWith precision pressure reducer made of milled aluminum\u003c\/li\u003e \u003cli\u003eDynamic Valve Control ( DVC ) for a constant CO2 supply\u003c\/li\u003e \u003cli\u003eAdjustment knob for slow and precise CO2 supply\u003c\/li\u003e \u003cli\u003eCarbon, the most important building block for photosynthesis\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAdapter for reusable CO2 bottles\u003c\/li\u003e \u003cli\u003eSpecial CO2 check valve\u003c\/li\u003e \u003cli\u003eCO2 Diffuser Ultra M\u003c\/li\u003e \u003cli\u003eCO2 pressure reducer Carbo Start\u003c\/li\u003e \u003cli\u003eSpecial CO2 hose, 2m\u003c\/li\u003e \u003cli\u003eCarbo Test Crystal\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eContains gas under pressure; may explode if heated.\u003c\/li\u003e \u003cli\u003eProtect from sunlight. Store in a well-ventilated place.\u003c\/li\u003e \u003cli\u003eKeep out of the reach of children.\u003c\/li\u003e \u003cli\u003eHandle with care. Do not throw.\u003c\/li\u003e \u003cli\u003eDo not open by force.\u003c\/li\u003e \u003cli\u003eStore in a cool place. Protect from heat above 50 °C. Do not store in cellars.\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eDo not inhale CO2 gas, which has a suffocating effect in high concentrations. If gas escapes, ventilate the room well.\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738068261,"sku":"DE-CSFX200","price":161.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3272.jpg?v=1790050096"},{"product_id":"dennerle-carbo-test-crystal","title":"Dennerle Carbo Test Crystal","description":"\u003cp\u003e\u003cstrong\u003eMeasuring device for permanently measuring the CO\u003csub\u003e2\u003c\/sub\u003e content in an aquarium\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMade from high-quality crystal glass\u003c\/li\u003e \u003cli\u003eFor all aquaria\u003c\/li\u003e \u003cli\u003eIncluding pH measuring\u003c\/li\u003e \u003cli\u003eIncl. color comparison chart\u003c\/li\u003e \u003cli\u003eFunctions also in case of lower carbonate hardnesses\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738133797,"sku":"DE-CTC","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3292.jpg?v=1790050092"},{"product_id":"dennerle-carbo-test-crystal-nano","title":"Dennerle Carbo Test Crystal, Nano","description":"\u003cp\u003e\u003cstrong\u003eMeasuring device for permanently measuring the CO\u003csub\u003e2\u003c\/sub\u003e content in an aquarium\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMade from high-quality crystal glass\u003c\/li\u003e \u003cli\u003eFor all aquaria\u003c\/li\u003e \u003cli\u003eIncluding pH measuring\u003c\/li\u003e \u003cli\u003eIncl. color comparison chart\u003c\/li\u003e \u003cli\u003eFunctions also in case of lower carbonate hardnesses\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738264869,"sku":"DE-CTCN","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3291.jpg?v=1790050092"},{"product_id":"dennerle-catappa-leaves","title":"Dennerle Catappa Leaves","description":"\u003ch2\u003eTropical Almond Tree Leaves for Aquariums\u003c\/h2\u003e \u003cp\u003eThe Dennerle Catappa Leaves simulate the natural environment of aquatic habitats, reduce pH levels, and serve as a source of sustenance for aquatic animals while their owners are away. These leaves are of superior quality, carefully handpicked, and harvested from Terminalia Catappa tropical almond trees.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eNatural water conditioner for aquaria and valuable food supplement for sucking catfish ( e.g. Ancistrus species ), shrimp, and snails\u003c\/li\u003e \u003cli\u003eCreate natural, tropical-like aquarium water\u003c\/li\u003e \u003cli\u003eContain numerous natural active ingredients that have a positive effect on water and fish, including valuable humic and fulvic acids\u003c\/li\u003e \u003cli\u003eIdeal for starting a new aquarium and as a vacation food especially for catfish\u003c\/li\u003e \u003cli\u003eMildly acidify and stabilize the pH value\u003c\/li\u003e \u003cli\u003ePremium quality: harvested directly from the tree, cleaned, dried, handpicked\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738297637,"sku":"DE-CTLV","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3332.jpg?v=1790050096"},{"product_id":"dennerle-cleanator","title":"Dennerle Cleanator","description":"\u003ch2\u003eCleaning Sponge for Freshwater Aquariums\u003c\/h2\u003e \u003cp\u003eThe Dennerle Cleanator is a porous sponge that removes unwanted residue from aquarium walls without damaging the surface.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eEffortlessly removes stubborn algae and lime residues\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eGentle for glass, white glass, and silicone bonding\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eContains no harmful substances\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738363173,"sku":"DE-CLEN","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-27211.jpg?v=1790050095"},{"product_id":"dennerle-co2-diffusor-ultra-large","title":"Dennerle CO2 Diffusor Ultra, Large","description":"\u003ch2\u003eCeramic Disc CO2 Diffusor for Planted Tanks Up to 200 Liters\u003c\/h2\u003e\u003cp\u003eThe Dennerle CO2 Diffusor Ultra (200L) is a freshwater planted tank CO2 diffuser rated for tanks up to 200 liters (~53 gallons). It is the mid-size in the Dennerle CO2 Diffusor Ultra range, sized for small- to mid-size planted setups that make up the largest segment of the active planted tank hobby — tanks in the 30- to 55-gallon range running a pressurized CO2 system with a regulator and solenoid on a photoperiod timer.\u003c\/p\u003e\u003cp\u003eThe ceramic disc atomization produces fine CO2 bubbles that maximize dissolution time before the bubbles reach the surface and escape the water column. Finer bubbles mean more CO2 absorbed per unit of gas delivered — a meaningful efficiency advantage in tanks where CO2 waste adds up over months of daily injection. The shatterproof acrylic body eliminates the fragility risk of glass diffusors, which are the most commonly broken component in a CO2 system. The built-in bubble counter integrates the monitoring function directly into the diffusor body, removing the need for a separate inline counter and simplifying the CO2 line between the regulator and diffusor.\u003c\/p\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003eCeramic disc CO2 diffusor rated for freshwater planted tanks up to 200 liters (~53 gallons)\u003c\/li\u003e \u003cli\u003eCeramic disc produces fine CO2 bubbles for efficient dissolution and reduced gas waste\u003c\/li\u003e \u003cli\u003eShatterproof acrylic body; more durable than glass diffusors\u003c\/li\u003e \u003cli\u003eBuilt-in bubble counter for convenient monitoring of CO2 bubble rate\u003c\/li\u003e \u003cli\u003eIncludes CO2 hose with 4mm inner diameter \/ 6mm outer diameter\u003c\/li\u003e \u003cli\u003eCompact, clean design suitable for aquascape setups and display tanks\u003c\/li\u003e \u003cli\u003eRequires a separate CO2 source: pressurized cylinder with regulator, or BIO CO2 system\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eIdeal For:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003eSmall to mid-size planted tanks of 30 to 55 gallons running a pressurized CO2 system with a regulator, solenoid, and photoperiod timer as the standard daily CO2 delivery method\u003c\/li\u003e \u003cli\u003eEstablished planted tank hobbyists upgrading from a basic or lower-quality diffuser who want the fine atomization of a ceramic disc and the convenience of a built-in bubble counter in one unit\u003c\/li\u003e \u003cli\u003ePet stores stocking the CO2 Diffusor Ultra in the mid-size configuration alongside CO2 regulators and complete systems in their freshwater planted tank section\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003ePro Tips:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eUse the built-in bubble counter in combination with a CO2 drop checker, not instead of one.\u003c\/strong\u003e The bubble counter tells you how much CO2 is entering the diffuser; the drop checker tells you how much is actually dissolving into the water. Together, the two readings give you a complete picture of CO2 delivery and uptake in the tank.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReduce CO2 injection at the end of the photoperiod or use a solenoid timer.\u003c\/strong\u003e Plants consume CO2 during the light period and produce it at night. Running CO2 injection after lights-out unnecessarily lowers pH and can stress fish. A solenoid on a timer that mirrors the photoperiod is the standard practice for any pressurized CO2 setup feeding this diffusor.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRun the diffusor during a 100% water change to saturate the new water quickly.\u003c\/strong\u003e Fresh water added during water changes has lower dissolved CO2 than the tank water it replaces. Running the diffuser for 30 minutes after a water change helps restore CO2 levels to the target range before plant activity resumes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738494245,"sku":"DE-CODFL","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3243.jpg?v=1790050092"},{"product_id":"dennerle-co2-diffusor-ultra-medium","title":"Dennerle CO2 Diffusor Ultra, Medium","description":"\u003ch2\u003eCeramic Disc CO2 Diffuser for Planted Tanks Up to 200 Liters\u003c\/h2\u003e\u003cp\u003eThe Dennerle CO2 Diffusor Ultra (200L) is a freshwater planted tank CO2 diffuser rated for tanks up to 200 liters (~53 gallons). It is the mid-size in the Dennerle CO2 Diffusor Ultra range, sized for small- to mid-size planted setups that make up the largest segment of the active planted tank hobby — tanks in the 30- to 55-gallon range running a pressurized CO2 system with a regulator and solenoid on a photoperiod timer.\u003c\/p\u003e\u003cp\u003eThe ceramic disc atomization produces fine CO2 bubbles that maximize dissolution time before the bubbles reach the surface and escape the water column. Finer bubbles mean more CO2 absorbed per unit of gas delivered — a meaningful efficiency advantage in tanks where CO2 waste adds up over months of daily injection. The shatterproof acrylic body eliminates the fragility risk of glass diffusers, which are the most commonly broken component in a CO2 system. The built-in bubble counter integrates the monitoring function directly into the diffuser body, removing the need for a separate inline counter and simplifying the CO2 line between the regulator and diffuser.\u003c\/p\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003eCeramic disc CO2 diffuser rated for freshwater planted tanks up to 200 liters (~53 gallons)\u003c\/li\u003e \u003cli\u003eCeramic disc produces fine CO2 bubbles for efficient dissolution and reduced gas waste\u003c\/li\u003e \u003cli\u003eShatterproof acrylic body; more durable than glass diffusers\u003c\/li\u003e \u003cli\u003eBuilt-in bubble counter for convenient monitoring of CO2 bubble rate\u003c\/li\u003e \u003cli\u003eIncludes CO2 hose with 4mm inner diameter \/ 6mm outer diameter\u003c\/li\u003e \u003cli\u003eCompact, clean design suitable for aquascape setups and display tanks\u003c\/li\u003e \u003cli\u003eRequires a separate CO2 source: pressurized cylinder with regulator, or BIO CO2 system\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eIdeal For:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003eSmall to mid-size planted tanks of 30 to 55 gallons running a pressurized CO2 system with a regulator, solenoid, and photoperiod timer as the standard daily CO2 delivery method\u003c\/li\u003e \u003cli\u003eEstablished planted tank hobbyists upgrading from a basic or lower-quality diffuser who want the fine atomization of a ceramic disc and the convenience of a built-in bubble counter in one unit\u003c\/li\u003e \u003cli\u003ePet stores stocking the CO2 Diffusor Ultra in the mid-size configuration alongside CO2 regulators and complete systems in their freshwater planted tank section\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003ePro Tips:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eUse the built-in bubble counter in combination with a CO2 drop checker, not instead of one.\u003c\/strong\u003e The bubble counter tells you how much CO2 is entering the diffuser; the drop checker tells you how much is actually dissolving into the water. Both readings together give you a complete picture of CO2 delivery and uptake in the tank.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReduce CO2 injection at the end of the photoperiod or use a solenoid timer.\u003c\/strong\u003e Plants consume CO2 during the light period and produce it at night. Running CO2 injection after lights-out drives pH down unnecessarily and can stress fish. A solenoid on a timer that mirrors the photoperiod is the standard practice for any pressurized CO2 setup feeding this diffuser.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRun the diffuser during a 100% water change to saturate the new water quickly.\u003c\/strong\u003e Fresh water added during water changes has lower dissolved CO2 than the tank water it replaces. Running the diffuser for 30 minutes after a water change helps restore CO2 levels to the target range before plant activity resumes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738527013,"sku":"DE-CODFM","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3242.jpg?v=1790050092"},{"product_id":"dennerle-co2-diffusor-ultra-small","title":"Dennerle CO2 Diffusor Ultra, Small","description":"\u003ch2\u003eCeramic Disc CO2 Diffusor for Planted Tanks Up to 100 Liters\u003c\/h2\u003e\u003cp\u003eThe Dennerle CO2 Diffusor Ultra (100L) is a compact CO2 diffuser for freshwater planted tanks rated up to 100 liters (~26 gallons). It is a diffuser accessory, not a complete CO2 system — it connects to an existing CO2 source such as a pressurized cylinder with a regulator or a BIO CO2 system, and converts the CO2 supply into fine bubbles that dissolve efficiently into the water column before reaching the surface.\u003c\/p\u003e\u003cp\u003eThe ceramic disc atomization is the most functionally important specification on this product. Fine bubbles produced by a high-quality ceramic disc have more surface area per unit of CO2 than coarse bubbles, giving each bubble more time to dissolve before escaping at the surface. That translates directly into better CO2 efficiency per bubble — less wasted gas and more CO2 actually available to plants. The shatterproof acrylic body replaces the glass construction common in lower-cost diffusers, eliminating the most common failure point in a CO2 diffuser setup. The built-in bubble counter lets you monitor CO2 delivery rate without installing a separate in-line bubble counter. CO2 hose with 4mm inner diameter (6mm outer) is included.\u003c\/p\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003eCeramic disc produces fine CO2 bubbles for efficient dissolution into the planted tank water column\u003c\/li\u003e \u003cli\u003eShatterproof acrylic construction; more durable than glass diffusers without visual compromise\u003c\/li\u003e \u003cli\u003eBuilt-in bubble counter for monitoring CO2 bubble rate without a separate in-line counter\u003c\/li\u003e \u003cli\u003eIncludes CO2 hose with 4mm inner diameter \/ 6mm outer diameter — standard CO2 system sizing\u003c\/li\u003e \u003cli\u003eCompact and clean design suited to aquascape setups where visible equipment affects the layout\u003c\/li\u003e \u003cli\u003eRated for freshwater planted tanks up to 100 liters (~26 gallons)\u003c\/li\u003e \u003cli\u003eRequires a separate CO2 source: pressurized cylinder with regulator, or BIO CO2 system\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eIdeal For:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003eNano and small planted tanks of 10 to 26 gallons running a pressurized or BIO CO2 system where a compact diffuser that does not visually dominate the layout is needed\u003c\/li\u003e \u003cli\u003eFirst-time CO2 system builders adding a diffuser to a small planted aquascape as the final component of their CO2 setup\u003c\/li\u003e \u003cli\u003eAquascape hobbyists running a Nature Aquarium or Dutch style layout in a desktop or mid-size tank who want fine-bubble CO2 delivery with a clean, low-profile diffuser\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003ePro Tips:\u003c\/h3\u003e\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePosition the diffuser near the filter intake.\u003c\/strong\u003e Placing the diffuser close to the intake of a canister or HOB filter pulls CO2 bubbles into the filter and distributes dissolved CO2 evenly throughout the tank. This is more efficient than placing the diffuser in a low-flow corner where bubbles rise undisturbed to the surface.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStart with a low bubble rate and dial up slowly.\u003c\/strong\u003e For a 100L tank, begin at one to two bubbles per second and increase gradually over several days while monitoring plant response and fish behavior. Signs of CO2 oversupply include fish gasping at the surface; signs of undersupply include slow plant growth and algae on leaves.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClean the ceramic disc every four to six weeks to maintain fine bubble output.\u003c\/strong\u003e Calcium and algae buildup on the ceramic disc reduces bubble fineness over time. A brief soak in diluted citric acid or white vinegar, followed by a thorough rinse with clean water, restores the disc's atomization quality.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881738985765,"sku":"DE-CODFS","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3241.jpg?v=1790050092"},{"product_id":"dennerle-co2-disposable-cylinder-1200-g","title":"Dennerle CO2 Disposable Cylinder, 1200 g","description":"\u003cp\u003eDennerle CO2 Disposable Cylinder, 1200 g\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739051301,"sku":"DE-CODCL","price":86.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3277.jpg?v=1790050095"},{"product_id":"dennerle-co2-disposable-cylinder-500-g","title":"Dennerle CO2 Disposable Cylinder, 500 g","description":"\u003cp\u003eDennerle CO2 Disposable Cylinder, 500 g\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739116837,"sku":"DE-CODCS","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3276.jpg?v=1790050095"},{"product_id":"dennerle-co2-flipper","title":"Dennerle CO2 Flipper","description":"\u003cp\u003eDennerle CO2 Flipper\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739182373,"sku":"DE-FLP","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3284.jpg?v=1790050095"},{"product_id":"dennerle-co2-hose-2m-black","title":"Dennerle CO2 Hose, 2m, Black","description":"\u003ch2\u003eBlack CO2 Hose\u003c\/h2\u003e \u003cp\u003eThe Dennerle CO2 Hose is made of a unique plastic material that is specifically designed to be resistant to CO2. It comes with a hose that has a 4mm inner diameter and 6mm outer diameter. The hose is pressure-resistant up to 7 bar and is also highly flexible, making it very easy to install. Moreover, it is free from PVC and silicone components, ensuring safe and reliable use.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739280677,"sku":"DE-CO2HS","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-36854.jpg?v=1790050095"},{"product_id":"dennerle-co2-long-term-test-correct","title":"Dennerle CO2 Long-Term Test Correct","description":"\u003ch2\u003e\u003cstrong\u003eAccurately Measure Long-Term CO2 Levels\u003c\/strong\u003e\u003c\/h2\u003e \u003cp\u003eDennerle's CO2 Long-term Test Correct is a reliable and efficient tool for monitoring CO2 levels in an aquarium long-term. This test kit ensures that plants receive the optimal amount of carbon dioxide needed for healthy growth. It offers long-term accuracy and stability, providing accurate measurements over an extended period of time. With its easy-to-use design and precise results, the CO2 Long-term Test Correct by Dennerle is a must-have for any serious aquarium enthusiast.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExact control of the CO2 content\u003c\/li\u003e \u003cli\u003eWith a color comparison chart for determining the CO2 content\u003c\/li\u003e \u003cli\u003eMade from high-quality plastic\u003c\/li\u003e \u003cli\u003eFunctions also in case of lower carbonate hardnesses\u003c\/li\u003e \u003cli\u003eThe result is not influenced by other acids\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739346213,"sku":"DE-COLTT","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3288.jpg?v=1790050092"},{"product_id":"dennerle-co2-maxi-flipper","title":"Dennerle CO2 Maxi-Flipper","description":"\u003cp\u003eDennerle CO2 Maxi-Flipper\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739411749,"sku":"DE-MAXFLP","price":86.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3285.jpg?v=1790050095"},{"product_id":"dennerle-co2-micro-flipper","title":"Dennerle CO2 Micro-Flipper","description":"\u003cp\u003eDennerle CO2 Micro-Flipper\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739477285,"sku":"DE-MCFLP","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3282.jpg?v=1790050095"},{"product_id":"dennerle-co2-mini-flipper","title":"Dennerle CO2 Mini-Flipper","description":"\u003cp\u003eDennerle CO2 Mini-Flipper\u003c\/p\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739510053,"sku":"DE-MNFLP","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3283.jpg?v=1790050095"},{"product_id":"dennerle-co2-nano-flipper","title":"Dennerle CO2 Nano-Flipper","description":"\u003ch2\u003eMaximizing CO2 Efficiency in Nano Aquariums\u003c\/h2\u003e \u003cp\u003eThe Dennerle CO2 Nano Flipper is an accessory specifically designed for CO2 fertilization systems in nano aquariums. With its unique vent design, this small device improves the efficiency of the CO2 system by blocking false gases like nitrogen from entering the CO2 bubble, ensuring that there are no clogs and maximizing the use of CO2. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThe collection tray ensures an effective CO2 dissolution\u003c\/li\u003e \u003cli\u003eSafe - large amounts of CO2 are automatically removed by the waste gas ventilation\u003c\/li\u003e \u003cli\u003eCan be combined with all conventional CO2 fertilization systems\u003c\/li\u003e \u003cli\u003eMade of high-quality plastic with a long service life\u003c\/li\u003e \u003cli\u003eMade for aquariums 40L (10 US Gals.) or less\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cem\u003eOnline exclusive: this item is ordered in for you and is usually ready within a few business days. Choose in-store pickup, local delivery or shipping at checkout.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dennerle","offers":[{"title":"Default Title","offer_id":53881739575589,"sku":"DE-NFLP","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3281.jpg?v=1790050095"},{"product_id":"dennerle-co2-quick-test-dissolved-co2-test-kit","title":"Dennerle CO2 Quick Test, Dissolved CO2 Test Kit","description":"\u003ch2\u003e\u003cstrong\u003eSpot-Check Test Kit for Dissolved CO2 in Freshwater Planted Tanks\u003c\/strong\u003e\u003c\/h2\u003e\u003cdiv\u003eThe Dennerle CO2 Quick Test is a simple, fast test kit for measuring dissolved CO2 gas concentration in a freshwater planted aquarium. Each pack contains two tests with results available in seconds — making it a practical tool for one-off verification rather than continuous daily monitoring. Hobbyists reaching for this product are typically doing one of three things: confirming that a newly installed CO2 system is actually delivering gas to the water, troubleshooting a planted tank where CO2 may be too high or too low, or checking CO2 levels after adjusting bubble rate or solenoid timing on an existing setup.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eOne specification on the product page requires attention before using this test in certain planted tank setups: liquid carbon compounds are not measured. Hobbyists running liquid carbon supplements such as Dennerle Carbo Elixier or similar products alongside or instead of pressurized CO2 will get a result that reflects only the dissolved CO2 gas in the water, not the liquid carbon. For those users, the Quick Test is still useful for measuring the CO2 component of their plant nutrition program, but the result should not be interpreted as the total available carbon in the tank.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eFor ongoing continuous CO2 monitoring, the Dennerle CO2 Long-term Test Correct or CO2 Special-Indicator is the appropriate solution — both remain in the tank and give a live reading at all times. The Quick Test is the right product when a periodic spot check is all that is needed.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSimple, fast dissolved CO2 test for freshwater planted aquariums\u003c\/li\u003e\n\u003cli\u003eResults in seconds — no waiting for color to develop over minutes or hours\u003c\/li\u003e\n\u003cli\u003eTwo tests included per pack\u003c\/li\u003e\n\u003cli\u003eTests dissolved CO2 gas only; liquid carbon compounds are not measured\u003c\/li\u003e\n\u003cli\u003eIdeal for spot checks when setting up a new CO2 system, adjusting bubble rate, or troubleshooting plant growth\u003c\/li\u003e\n\u003cli\u003eCompatible with all pressurized CO2 systems and BIO CO2 setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal For:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePlanted tank hobbyists setting up a new pressurized CO2 system who want to confirm CO2 is dissolving into the water before investing in a permanent long-term monitoring solution\u003c\/li\u003e\n\u003cli\u003eCO2 system users troubleshooting slow plant growth or unexpected algae who want a quick spot check to rule CO2 in or out as a contributing factor before making larger changes\u003c\/li\u003e\n\u003cli\u003eAquarium stores looking for a low-cost add-on that pairs naturally with any CO2 diffusor, regulator, or complete CO2 system purchase at the point of sale\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePro Tips:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTake the water sample from mid-tank depth and mid-photoperiod for the most useful reading.\u003c\/strong\u003e CO2 concentration varies by depth and time of day. A sample taken near the diffusor or at first light — before plants have been actively consuming CO2 for several hours — gives a different reading than a sample taken mid-tank at midday. Mid-column and mid-photoperiod is the most representative snapshot of what your plants are actually experiencing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf you use liquid carbon supplements, this test reflects CO2 gas, not total available carbon.\u003c\/strong\u003e Hobbyists using products like Dennerle Carbo Elixier alongside pressurized CO2 should interpret the Quick Test result as the CO2 gas component only. The liquid carbon contribution to plant carbon availability will not appear in the reading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse Quick Test for spot checks; use the Dennerle CO2 Special-Indicator or Long-term Test Correct for ongoing monitoring.\u003c\/strong\u003e The two-test pack is a verification and troubleshooting tool. 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