{"product_id":"brightwell-aquatics-florin-k-500ml","title":"Brightwell Aquatics Florin-K - 500ml","description":"\u003cdiv class=\"product-description\" style=\"font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003ch1 style=\"font-size:24px;font-weight:bold;margin:0 0 10px 0;\"\u003eBrightwell Aquatics Florin-K - 500ml\u003c\/h1\u003eBrightwell Aquatics Florin-K is a concentrated potassium supplement for freshwater planted aquariums that need targeted potassium support without relying on a broad all-in-one fertilizer. Potassium plays a major role in photosynthesis, charge balance, nutrient transport, and overall plant metabolism, making it one of the most important elements to keep available in a serious planted setup.\u003cbr\u003e\u003cbr\u003eFlorin-K is formulated as a high-purity chloride-free potassium source and is especially useful in aquariums where rapid growth, heavy planting, flowering species, or strong lighting can drive potassium demand beyond what routine water changes or general fertilizers can maintain. This 500 mL bottle is a strong fit for aquarists who want to manage potassium directly and pair it with other targeted Brightwell plant supplements as needed.\u003ch2 style=\"font-size:20px;font-weight:bold;margin:16px 0 6px 0;\"\u003eFeatures of the Brightwell Aquatics Florin-K - 500ml\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConcentrated high-purity potassium supplement for planted aquariums\u003c\/li\u003e\n\u003cli\u003eChloride-free formula designed for controlled potassium supplementation\u003c\/li\u003e\n\u003cli\u003eSupports photosynthesis nutrient transport and enzyme-driven plant functions\u003c\/li\u003e\n\u003cli\u003eUseful for planted tanks with higher potassium demand\u003c\/li\u003e\n\u003cli\u003eSuitable for aquarists building a custom nutrient dosing approach\u003c\/li\u003e\n\u003cli\u003eCan be paired with FlorinMulti and other targeted Brightwell supplements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size:20px;font-weight:bold;margin:16px 0 6px 0;\"\u003eBrightwell Aquatics Florin-K - 500ml Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct type: Liquid potassium supplement\u003c\/li\u003e\n\u003cli\u003eBest suited for: Freshwater planted aquariums\u003c\/li\u003e\n\u003cli\u003eBottle size: 500 mL\u003c\/li\u003e\n\u003cli\u003eGuaranteed analysis: 0-0-2.37\u003c\/li\u003e\n\u003cli\u003ePotassium as soluble potash: 2.37% minimum\u003c\/li\u003e\n\u003cli\u003eSource of nutrients: Copper free potassium salts\u003c\/li\u003e\n\u003cli\u003eOther ingredients: Purified water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size:20px;font-weight:bold;margin:16px 0 6px 0;\"\u003eDirections for Brightwell Aquatics Florin-K - 500ml\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eShake well before each use\u003c\/li\u003e\n\u003cli\u003eBasic dosage: read the dosage printed on the bottle because dosage has changed across production strengths\u003c\/li\u003e\n\u003cli\u003eCurrent technical guidance also states 5 mL per 20 US gallons every other day or as required\u003c\/li\u003e\n\u003cli\u003eUse an accurate potassium test kit before advanced dosing whenever possible\u003c\/li\u003e\n\u003cli\u003eBrightwell recommends maintaining potassium within roughly 15 to 30 ppm with 20 to 25 ppm often being an effective target range\u003c\/li\u003e\n\u003cli\u003eDaily dosing is generally preferred over large weekly additions for more stable potassium levels\u003c\/li\u003e\n\u003cli\u003eAdjust slowly based on plant appearance and nutrient demand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Brightwell Aquatics","offers":[{"title":"Default Title","offer_id":43072701988954,"sku":"BW-FWK0500","price":19.85,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/1636\/7450\/files\/BRIGHTWELL-FLORINK-3.png?v=1778179734","url":"https:\/\/jlaquatics.com\/products\/brightwell-aquatics-florin-k-500ml","provider":"J\u0026L Aquatics Ltd.","version":"1.0","type":"link"}