--- product_id: 48995703 title: "Seachem Flourish Comprehensive Supplement, 500 ml" brand: "seachem" price: "€ 40.95" currency: EUR in_stock: true reviews_count: 13 category: "Seachem" url: https://www.desertcart.at/products/48995703-seachem-flourish-comprehensive-supplement-500-ml store_origin: AT region: Austria --- # Optimized for planted aquariums 500 mL liquid formula Comprehensive micro & trace elements Seachem Flourish Comprehensive Supplement, 500 ml **Brand:** seachem **Price:** € 40.95 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your aquarium’s green game with every drop! ## Quick Answers - **What is this?** Seachem Flourish Comprehensive Supplement, 500 ml by seachem - **How much does it cost?** € 40.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/48995703-seachem-flourish-comprehensive-supplement-500-ml) ## 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 - • **Gluten-Free & Safe:** Formulated without allergens, perfect for eco-conscious aquarists prioritizing clean water. - • **Trusted by Thousands:** 4.6-star rating from nearly 10,000 reviews proves it’s the go-to for thriving aquatic plants. - • **Precision Dosing Formula:** Easy 5 mL capful dosing per 80L ensures consistent, hassle-free supplementation twice weekly. - • **Nitrogen & Phosphorus Free:** Supports balanced growth without risking algae blooms or nutrient overload. - • **Complete Micro-Nutrient Boost:** Delivers essential trace elements like iron, magnesium, and zinc for vibrant plant health. ## Overview Seachem Flourish is a 500 mL liquid supplement designed specifically for planted aquariums, providing a comprehensive blend of essential micro and trace elements without nitrogen or phosphorus. Trusted by thousands of aquarists, it promotes healthy, vibrant aquatic plants with easy, precise dosing twice a week. ## Description Product Description Seachem Flourish 500Ml Ingredients Potassium Chloride, Calcium Chloride, Copper Sulfate, Magnesium Chloride, Ferrous Gluconate, Cobalt Sulfate, Magnesium Sulfate, Manganese Sulfate, Boric Acid, Sodium Molybdate, Zinc Sulfate, Protein Hydrolysates. Directions Use 1 capful (5 mL) for every 80 L (20 gallons*) twice a week. For macro element (NPK) fertilization, use Flourish Nitrogen, Flourish Phosphorus or Flourish Potassium as needed. Box Contains water treatment Review: Great product - Great product Review: improve plant growth - I think it's a great product and I wouldn't hesitate to recommend who wants to improve plant growth. ## Features - Warning:Not suitable for children under 10 months. - Comprehensive supplement for the planted aquarium - Provides micro elements, trace elements and other nutrients - Does not contain significant levels of nitrogen or phosphorus - Model number: 020964 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00025696M | | Allergen Information | Gluten Free | | Best Sellers Rank | 6,639 in Pet Supplies ( See Top 100 in Pet Supplies ) 75 in Aquarium Water Treatments | | Brand | Seachem | | Brand Name | Seachem | | Customer Reviews | 4.6 out of 5 stars 9,690 Reviews | | Global Trade Identification Number | 00000116051309 | | Included Components | fertilizer | | Item Form | Liquid | | Item Type Name | Seachem Flourish 500Ml | | Item Weight | 544 g | | Item form | Liquid | | Item weight | 544 g | | Liquid Volume | 500 Millilitres | | Liquid volume | 500 Millilitres | | Manufacturer | Seachem | | Manufacturer Part Number | 075231 | | Model Number | 67105130 | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Aquatic Plants | | UPC | 604765291576 000116051309 | | Unit Count | 500.0 millilitre | | Unit count | 500.0 millilitre | ## Product Details - **Brand:** Seachem - **Item form:** Liquid - **Item weight:** 544 g - **Liquid volume:** 500 Millilitres - **Manufacturer:** Seachem ## Images ![Seachem Flourish Comprehensive Supplement, 500 ml - Image 1](https://m.media-amazon.com/images/I/713d3RSkCuL.jpg) ![Seachem Flourish Comprehensive Supplement, 500 ml - Image 2](https://m.media-amazon.com/images/I/81XDpuBl26L.jpg) ![Seachem Flourish Comprehensive Supplement, 500 ml - Image 3](https://m.media-amazon.com/images/I/81xeSMK0p+L.jpg) ![Seachem Flourish Comprehensive Supplement, 500 ml - Image 4](https://m.media-amazon.com/images/I/81iuE4Wr7RL.jpg) ![Seachem Flourish Comprehensive Supplement, 500 ml - Image 5](https://m.media-amazon.com/images/I/71YcqSWiJYL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: How much would ou need to use in a 90 litre tank...?** A: I would say between 1-2 thread in the cap. Each thread works out to 50L. **Q: Im looking to actually encourage algae growth in my tank, will this help with that?** A: It depends. With few fast growing plants in the tank then Flourish will tend to encourage algae growth, sometimes very quickly. But it can also unbalance bacterial load in filters if over dosed so go carefully. You might also find that black hair algae grows quickly ... not always a good source of food for fish, snails or shrimps if that’s what you want algae for. **Q: Hi. Is this safe to use in newly set up (4weeks) aquarium. Java ferns melting. Thanks** A: If is newly set up u need tank to go via cycling all plants at first melt before settling in. Keep eye on your tank. I would not add anything but if you really want should be OK **Q: If I does 4ml for my 200 litre is that once a wk and is it necessary to Refrigerate it? Thanks** A: Depends on how many plants and fish you have, I have a lot of fast growing plants in my 250 litre tank along with slower growers such as anubias, so I add 2ml everyday. Daily is better than dosing 1-2 times per week...Analogy: would you rather be fed 1-2 times per week or daily? As for keeping in the fridge: Flourish contains nitrogen, phosphorus, vitamins and amino acids and can get contaminated by stuff in the air when opened which can cause bacteria, mould, or fungus to grow inside the bottle. Seachem recommends putting it in the fridge 3 months after opening, I put it mine in straight away. If you start to get a lot of algae growth just cut down on the dosing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by L***A on 17 July 2026* Great product ### ⭐⭐⭐⭐⭐ improve plant growth *by J***4 on 19 October 2025* I think it's a great product and I wouldn't hesitate to recommend who wants to improve plant growth. ### ⭐⭐⭐⭐⭐ #1 De-chlorinator. *by A***O on 20 May 2025* Been using this this stuff for years, never had a problem with it and you use a fraction of it on each water change. Works out much cheaper in the long run than ‘cheaper’ alternatives. ## Frequently Bought Together - Seachem Flourish Freshwater Plant Supplement 500 ml - Seachem Flourish Excel 500 ml - Seachem Flourish Tabs Growth Supplement - Aquatic Plant Stimulant 40 ct --- ## 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.at/products/48995703-seachem-flourish-comprehensive-supplement-500-ml](https://www.desertcart.at/products/48995703-seachem-flourish-comprehensive-supplement-500-ml) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-31*