{"product_id":"seachem-flourish-potassium","title":"Seachem Flourish Potassium","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSeachem\u003c\/span\u003e\u003c\/span\u003e Flourish Potassium\u003c\/strong\u003e is a highly concentrated potassium supplement designed specifically for planted aquariums. Potassium is one of the most critical macronutrients for aquatic plants — and one of the most commonly deficient nutrients in closed aquarium systems.\u003c\/p\u003e\n\u003cp\u003eUnlike nitrogen and phosphorus, potassium does not accumulate from fish waste in meaningful amounts. That means many planted tanks — especially those with heavy plant mass, strong lighting, or CO₂ injection — quietly become potassium deficient over time.\u003c\/p\u003e\n\u003ch3\u003eWhat Does It Do?\u003c\/h3\u003e\n\u003cp\u003e✔ Supports strong stem and leaf development\u003cbr\u003e✔ Promotes vibrant, rich green coloration\u003cbr\u003e✔ Helps prevent leaf pinholes and yellowing\u003cbr\u003e✔ Improves overall plant resilience and growth rate\u003c\/p\u003e\n\u003ch3\u003eCommon Issues This Helps Prevent or Fix:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSmall holes forming in older leaves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eYellowing leaf edges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeak stems or brittle growth\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStunted plant development\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransparent leaf patches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you’re seeing pinholes in Java Fern, yellowing in stem plants, or general slow growth despite dosing other nutrients — potassium deficiency is often the culprit.\u003c\/p\u003e\n\u003ch3\u003eHow Do You Know You Need It?\u003c\/h3\u003e\n\u003cp\u003eYou likely need \u003cstrong\u003eFlourish Potassium\u003c\/strong\u003e if:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eYou run a planted tank but don’t dose potassium specifically\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eYou’re using RO water or very soft water\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eYou’re seeing leaf damage that isn’t iron-related\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eYour plants grow, but lack strength and fullness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eYou run high light or injected CO₂\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn most aquariums, potassium supplementation is not optional — it’s foundational.\u003c\/p\u003e\n\u003ch3\u003eDosage Instructions:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Dose:\u003c\/strong\u003e 5mL per 125 litres, 1–2 times per week\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFor heavily planted or high-tech tanks, dosing may be increased as needed based on plant response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan be used alongside comprehensive fertilisers such as Seachem Flourish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways monitor plant health and adjust gradually.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Seachem Flourish Potassium?\u003c\/h3\u003e\n\u003cp\u003e✔ Highly concentrated formula\u003cbr\u003e✔ Does not impact nitrogen or phosphate levels\u003cbr\u003e✔ Safe for freshwater planted aquariums\u003cbr\u003e✔ Ideal for low-tech and high-tech aquascapes\u003cbr\u003e✔ Easy liquid dosing\u003c\/p\u003e\n\u003cp\u003eIf you’re serious about plant growth and long-term aquascape health, \u003cstrong\u003eSeachem Flourish Potassium \u003c\/strong\u003eis a key part of a balanced fertilisation routine.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100mL","offer_id":43358683332685,"sku":null,"price":19.99,"currency_code":"NZD","in_stock":true},{"title":"250mL","offer_id":43358683365453,"sku":null,"price":27.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/2180\/0269\/files\/91a57fe0-f01d-f111-8340-7ced8d344639.png?v=1785806631","url":"https:\/\/simplyfish.store\/products\/seachem-flourish-potassium","provider":"Simply Fish","version":"1.0","type":"link"}