--- product_id: 80882331 title: "Flourish Potassium, 500ml" brand: "seachem" price: "€ 39.71" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.pt/products/80882331-flourish-potassium-500ml store_origin: PT region: Portugal --- # Phosphate & nitrate-free formula Optimized potassium boost for thriving plants 500ml liquid volume for easy dosing Flourish Potassium, 500ml **Brand:** seachem **Price:** € 39.71 **Availability:** ✅ In Stock ## Summary > 🌿 Unlock your aquarium’s full potential with pure potassium power! ## Quick Answers - **What is this?** Flourish Potassium, 500ml by seachem - **How much does it cost?** € 39.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/80882331-flourish-potassium-500ml) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Revive & Thrive:** Clinically proven to rescue potassium-deficient plants like Java Ferns, promoting lush, vibrant growth. - • **Easy Liquid Dosing:** 500ml bottle with precise liquid form for hassle-free, accurate supplementation. - • **Pure Potassium Power:** Delivers essential potassium without unwanted phosphates or nitrates, ensuring balanced plant nutrition. - • **Trusted Authenticity:** Imported with official hologram and importer details guaranteeing genuine quality. - • **Tailored for Planted Tanks:** Perfectly complements Flourish Nitrogen and Phosphorus for a complete NPK regimen. ## Overview Seachem Flourish Potassium is a 500ml liquid supplement designed to provide essential potassium to planted aquariums without adding phosphates or nitrates. It perfectly complements other Seachem Flourish products to create a balanced NPK fertilizer system, ensuring healthy, vibrant aquatic plants. Imported with guaranteed authenticity, it’s trusted by hobbyists to revive potassium-deficient plants and maintain thriving underwater landscapes. ## Description All products are imported from the usa. All electronic products must be used with a step down/up converter for Indian voltage compatibility. Review: It’s saved my Java Ferns! - The seller that I purchased the bottle from was Sai Aqua World and they had sent me a genuine and original product. Yes there was some crusty residue around the cap but this isn’t due to a leak from the bottle. Any Seachem product you buy in India must contain the importers hologram & importers label (which has the date of import, importers email and phone number with a proper bar code). I’m very happy with my purchase and that it is an original from the seller that I purchased. This product itself is excellent, any planted tank needs an NPK (nitrogen, phosphorus, potassium) based substrate or fertiliser. Fish waste/poop provides the N & P that aquatic plants need. I have a lot of java fern in my tank whose leaves were blackening due to a lack of K which I was able to dose with this. My plants are thriving now! Thank you so much! Review: Simply best fertilizer - Seachem is the best fertilizer you can get in our hobby. ## Features - Potassium supplement for the planted aquarium - Does not contain phosphate or nitrate making it ideal for use with flourish nitrogen and flourish phosphorus - The most easily obtained sources of potassium are potassium nitrate and potassium phosphate ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002APILO | | Best Sellers Rank | #20,058 in Pet Supplies ( See Top 100 in Pet Supplies ) #414 in Water Treatments | | Brand | Seachem | | Generic Name | Flourish Potassium | | Global Trade Identification Number | 00000116046305 | | Included Components | 1 Piece Seachem Flourish Potassium | | Item Dimensions LxWxH | 19.3 x 3.8 x 3.8 Centimeters | | Item Form | Liquid | | Item Weight | 265 g | | Item model number | 463 | | Liquid Volume | 500 Millilitres | | Manufacturer | AQUATIC REMEDIES, AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466 | | Net Quantity | 1 Count | | Packer | Eagle Network Supply Pvt. Ltd. , Khasra No. 399 Delhi - 110030 ; +91 1143528338 | | Product Dimensions | 19.3 x 3.81 x 3.81 cm; 265 g | | UPC | 000116046305 | ## Product Details - **Brand:** Seachem - **Item Form:** Liquid - **Item Weight:** 265 Grams - **Liquid Volume:** 500 Millilitres ## Images ![Flourish Potassium, 500ml - Image 1](https://m.media-amazon.com/images/I/51tnZl9nI-L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It’s saved my Java Ferns! *by G***S on 25 October 2018* The seller that I purchased the bottle from was Sai Aqua World and they had sent me a genuine and original product. Yes there was some crusty residue around the cap but this isn’t due to a leak from the bottle. Any Seachem product you buy in India must contain the importers hologram & importers label (which has the date of import, importers email and phone number with a proper bar code). I’m very happy with my purchase and that it is an original from the seller that I purchased. This product itself is excellent, any planted tank needs an NPK (nitrogen, phosphorus, potassium) based substrate or fertiliser. Fish waste/poop provides the N & P that aquatic plants need. I have a lot of java fern in my tank whose leaves were blackening due to a lack of K which I was able to dose with this. My plants are thriving now! Thank you so much! ### ⭐⭐⭐⭐⭐ Simply best fertilizer *by P***R on 6 October 2020* Seachem is the best fertilizer you can get in our hobby. ### ⭐⭐⭐⭐⭐ Greay *by B***N on 16 March 2018* Great product, using more than 6 yrs now..dose low thats the key. ## Frequently Bought Together - Seachem Flourish Potassium 500ml - Seachem Flourish Freshwater Plant Supplement 500 ml - Seachem Flourish Iron 500ml --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/80882331-flourish-potassium-500ml](https://www.desertcart.pt/products/80882331-flourish-potassium-500ml) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*