{"product_id":"seachem-flourish-potassium-supplement-planted","title":"Seachem Flourish Potassium","description":"\u003cstyle\u003e\n  .aq-pd { font-family: Georgia, 'Times New Roman', serif; color:#1a1a1a; line-height:1.6; }\n  .aq-pd h2 { font-size:1.25em; font-weight:700; margin:1.4em 0 .5em; border-left:4px solid #1E88E5; padding-left:10px; line-height:1.2; }\n  .aq-pd p { margin:0 0 1em; }\n  .aq-pd a { color:#1565C0; }\n  .aq-callout { background:#E3F2FD; border-left:4px solid #1E88E5; padding:12px 16px; margin:0 0 16px; font-size:.97em; }\n  .aq-features { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:12px; margin:0 0 8px; }\n  .aq-feature { background:#F1F8FE; border:1px solid #BBDEFB; border-radius:8px; padding:12px 14px; }\n  .aq-feature strong { display:block; margin-bottom:4px; color:#0D47A1; }\n  .aq-table { width:100%; border-collapse:collapse; margin:.4em 0 1em; font-size:.95em; }\n  .aq-table th, .aq-table td { border:1px solid #BBDEFB; padding:8px 10px; text-align:left; }\n  .aq-table th { background:#E3F2FD; }\n  .aq-table tr:nth-child(even) td { background:#F1F8FE; }\n  .aq-specs-table { width:100%; border-collapse:collapse; margin:.4em 0 1em; font-size:.95em; }\n  .aq-specs-table th, .aq-specs-table td { border:1px solid #BBDEFB; padding:8px 10px; text-align:left; }\n  .aq-specs-table th { background:#E3F2FD; width:38%; }\n\u003c\/style\u003e\n\u003cdiv class=\"aq-pd\"\u003e\n\u003cp\u003e\u003cstrong\u003eSeachem Flourish Potassium\u003c\/strong\u003e is a concentrated potassium source for the planted aquarium, supplying 50,000 mg\/L of potassium. Potassium is one of the three key macro nutrients (nitrogen, phosphorus, potassium, or NPK) and is vital to vigorous growth. It can become depleted in a fast-growing tank or when source water is low in minerals, making it the limiting factor to growth. Browse our full range of \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\"\u003eadditives and supplements\u003c\/a\u003e and the rest of the \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/seachem\"\u003eSeachem lineup\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv class=\"aq-callout\"\u003e\n\u003cstrong\u003eStops potassium depletion.\u003c\/strong\u003e A targeted potassium dose that prevents the yellowing of older leaves and keeps fast-growing planted tanks at their best.\u003c\/div\u003e\n\u003ch2\u003eWhy Seachem Flourish Potassium\u003c\/h2\u003e\n\u003cdiv class=\"aq-features\"\u003e\n\u003cdiv class=\"aq-feature\"\u003e\n\u003cstrong\u003eConcentrated potassium\u003c\/strong\u003e50,000 mg\/L of potassium, so a small dose treats a lot of water.\u003c\/div\u003e\n\u003cdiv class=\"aq-feature\"\u003e\n\u003cstrong\u003ePrevents depletion\u003c\/strong\u003eReplaces potassium used up by fast-growing plants and soft source water.\u003c\/div\u003e\n\u003cdiv class=\"aq-feature\"\u003e\n\u003cstrong\u003eFixes yellowing leaves\u003c\/strong\u003eCorrects the yellowing of older leaves caused by a potassium shortage.\u003c\/div\u003e\n\u003cdiv class=\"aq-feature\"\u003e\n\u003cstrong\u003ePrecise control\u003c\/strong\u003eDose potassium independently to round out your macro routine.\u003c\/div\u003e\n\u003cdiv class=\"aq-feature\"\u003e\n\u003cstrong\u003ePart of the NPK trio\u003c\/strong\u003ePairs with Flourish Nitrogen and Phosphorus for complete macros.\u003c\/div\u003e\n\u003cdiv class=\"aq-feature\"\u003e\n\u003cstrong\u003eFreshwater planted tanks\u003c\/strong\u003eSafe for plants, fish, and invertebrates when used as directed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eShake well before use. Add 5 mL (one capful) to every 125 liters (about 30 US gallons) twice a week, or dose as needed in response to signs of potassium deficiency. Heavily planted or fast-growing tanks may need more. For best results, use as part of a complete fertilizer routine.\u003c\/p\u003e\n\u003ch2\u003eChoose Your Size\u003c\/h2\u003e\n\u003ctable class=\"aq-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 mL\u003c\/td\u003e\n\u003ctd\u003eNano and small planted tanks, or trying Flourish Potassium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 mL\u003c\/td\u003e\n\u003ctd\u003eStandard small to mid planted aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 mL\u003c\/td\u003e\n\u003ctd\u003eMid-size and well-planted tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 mL\u003c\/td\u003e\n\u003ctd\u003eLarge or heavily planted tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 L\u003c\/td\u003e\n\u003ctd\u003eMultiple tanks or frequent dosers, best value per mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"aq-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSeachem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eLiquid potassium (K) supplement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConcentration\u003c\/th\u003e\n\u003ctd\u003e50,000 mg\/L potassium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003ctd\u003ePlanted aquariums and soft or RO water (freshwater)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDose\u003c\/th\u003e\n\u003ctd\u003e5 mL per 125 L (30 gal) twice weekly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSizes\u003c\/th\u003e\n\u003ctd\u003e50 mL, 100 mL, 250 mL, 500 mL, 2 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eRecommended Pairings\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUse with Flourish Nitrogen and Phosphorus for a full NPK routine, found in our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/seachem\"\u003eSeachem range\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eBrowse all \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/additives-supplements\"\u003eadditives and supplements\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eShop everything for \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\"\u003eplanted aquariums\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know my plants need potassium?\u003c\/strong\u003e\u003cbr\u003eA common sign is yellowing or small pinholes in older leaves, since plants move potassium to new growth first. Fast-growing tanks deplete it quickly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen is potassium the limiting factor?\u003c\/strong\u003e\u003cbr\u003eIn heavily planted tanks and those using soft or RO water, potassium is often used up faster than nitrogen or phosphorus, which slows overall growth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does it differ from Nitrogen and Phosphorus?\u003c\/strong\u003e\u003cbr\u003eEach targets one macro nutrient. Use Nitrogen, Phosphorus, and Potassium together to dose the full NPK your plants need.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe for fish and shrimp?\u003c\/strong\u003e\u003cbr\u003eYes, when dosed as directed it is safe for fish and invertebrates in the planted freshwater aquarium.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Seachem","offers":[{"title":"50 mL","offer_id":48804727161051,"sku":"464","price":3.61,"currency_code":"USD","in_stock":false},{"title":"100 mL","offer_id":48804725915867,"sku":"465","price":5.15,"currency_code":"USD","in_stock":false},{"title":"250 mL","offer_id":48804725948635,"sku":"466","price":7.42,"currency_code":"USD","in_stock":true},{"title":"500 mL","offer_id":48804725981403,"sku":"463","price":11.83,"currency_code":"USD","in_stock":false},{"title":"2 L","offer_id":48804727193819,"sku":"468","price":40.62,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/0464-Flourish-Potassium-50-mL.png?v=1779664463","url":"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-potassium-supplement-planted","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}