{"product_id":"coralvue-28ppt-salinity-calibration-fluid-250ml","title":"CoralVue 28ppt Salinity Calibration Fluid, 250mL","description":"\u003ch2\u003eCoralVue 28ppt Low-Range Salinity Calibration Fluid\u003c\/h2\u003e\u003cp\u003eMaintaining exact water chemistry is critical for the survival of marine organisms, and the CoralVue \u003cb\u003e28ppt Salinity Calibration Fluid\u003c\/b\u003e (SKU: CV-SCS28) provides the laboratory-grade precision required to keep your testing equipment calibrated. While standard coral reef aquariums are kept at 35ppt (1.026 Specific Gravity), quarantine systems and hospital tanks are frequently maintained at a much lower salinity level. Known as \u003ci\u003ehyposalinity\u003c\/i\u003e therapy, keeping water at or near 28ppt is a highly effective, medication-free method to alleviate osmotic stress on recovering fish and suppress hazardous external parasites.\u003c\/p\u003e\u003cp\u003eBecause testing instruments like optical refractometers and digital conductivity probes can drift over time due to temperature changes and residual salt build-up, regular calibration is essential. This \u003cb\u003e250mL bottle of 28ppt fluid\u003c\/b\u003e is formulated as a pure sodium chloride solution that exactly mimics the refractive index and electrical conductivity of 28ppt seawater. By calibrating your testing gear to this lower range standard, you ensure that diagnostic readings on your quarantine and therapeutic systems are accurate, eliminating the guesswork that can lead to salinity shock.\u003c\/p\u003e\u003ch3\u003eWhy Choose a 28ppt Calibration Standard?\u003c\/h3\u003e\u003cp\u003eWhen measuring water that is far from your calibration point, testing instruments can exhibit \"scale slope error\"—meaning a probe calibrated at 35ppt may read slightly inaccurately when dipping down to therapeutic levels. Using CV-SCS28 allows you to calibrate your device closer to your target operating range, yielding highly precise and reliable data when managing specialized environments.\u003c\/p\u003e\u003cp\u003e\u003ci\u003eNote: This retail SKU contains (1) 250mL bottle of CoralVue 28ppt Salinity Calibration Fluid. Testing instruments, refractometers, and storage pipettes are sold separately.\u003c\/i\u003e\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":"CoralVue","offers":[{"title":"Default Title","offer_id":53881735643429,"sku":"CV-SCS28","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/5242\/1669\/files\/cv-t-3391.jpg?v=1790050092","url":"https:\/\/picayunepets.com\/products\/coralvue-28ppt-salinity-calibration-fluid-250ml","provider":"Poseidon's Pets of Picayune","version":"1.0","type":"link"}