{"product_id":"dymax-slim-flo-sf-240-nano-hob-filter-medium","title":"Dymax Slim Flo SF-240, Nano HOB Filter, Medium","description":"\u003ch2\u003eHOB Filter for Small Planted Tanks and Shrimp Setups\u003c\/h2\u003e\u003cdiv\u003eThe Dymax Slim Flo SF-240 Filter is a hang-on-back filter rated for freshwater aquariums from 5 to 8 gallons. It pulls water through a wool carbon cartridge that handles both mechanical filtration and basic chemical polishing in a single pass. For hobbyists who want clean, clear water in a small planted tank without the footprint or plumbing of a canister filter, the SF-240 is a practical starting point.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eAt 60 GPH with adjustable flow, the SF-240 turns over an 8-gallon tank more than seven times per hour at full output. Dial it back, and it runs gently enough for Neocaridina shrimp or slow-swimming community fish. The intake sponge prevents small inhabitants from being pulled into the unit, and the leveling knob ensures a secure hang on rimmed or lightly irregular tank edges.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHang-on-back design keeps the full tank interior clear for plants, hardscape, and livestock\u003c\/li\u003e\n\u003cli\u003eAdjustable flow dial covers the full range from gentle shrimp-safe output to maximum turnover\u003c\/li\u003e\n\u003cli\u003eWool carbon cartridge captures particulates and polishes water clarity in a single stage\u003c\/li\u003e\n\u003cli\u003eQuiet motor operation suitable for bedroom and living room setups\u003c\/li\u003e\n\u003cli\u003eLeveling knob accommodates tank rims that are not perfectly level\u003c\/li\u003e\n\u003cli\u003eIntake sponge protects shrimp and small fish from being drawn into the intake\u003c\/li\u003e\n\u003cli\u003eReplacement cartridges are sold separately as a 2-pack (DM-SFC-L)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal For:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e5 to 8-gallon planted tanks with shrimp colonies or small community fish like ember tetras or pygmy corydoras\u003c\/li\u003e\n\u003cli\u003eBeginner freshwater hobbyists who want a reliable HOB filter without the cost or complexity of a canister setup\u003c\/li\u003e\n\u003cli\u003eHobbyists running a shrimp breeding tank who need precise flow control to protect juveniles\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003ch3\u003ePro Tips:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the flow rate to your stock, not your tank volume. \u003c\/strong\u003eA colony of red cherry shrimp will do better at 30 to 40 GPH than at the SF-240's full 60 GPH. Dial down until you see minimal surface ripple and shrimp moving freely across the substrate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not skip the break-in period. \u003c\/strong\u003eA new wool carbon cartridge can cloud the water slightly for the first 24 to 48 hours as carbon dust settles out. This is normal and clears on its own without a water change.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplace the cartridge before it clogs, not after. \u003c\/strong\u003eCheck flow every three to four weeks. A slow drip back into the tank means the cartridge is full and flow has dropped, which reduces filtration efficiency before you notice it visually.\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":"Dymax","offers":[{"title":"Default Title","offer_id":53881758384421,"sku":"DM-SF240","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3172.jpg?v=1790050980","url":"https:\/\/picayunepets.com\/products\/dymax-slim-flo-sf-240-nano-hob-filter-medium","provider":"Poseidon's Pets of Picayune","version":"1.0","type":"link"}