--- product_id: 71687881 title: "Flourish Excel, 500 ml" brand: "seachem" price: "328 kr" currency: DKK in_stock: true reviews_count: 8 category: "Seachem" url: https://www.desertcart.dk/products/71687881-flourish-excel-500-ml store_origin: DK region: Denmark --- # Organic carbon source Compatible with CO2 systems Promotes ferrous iron (Fe+2) Flourish Excel, 500 ml **Brand:** seachem **Price:** 328 kr **Availability:** ✅ In Stock ## Summary > 🌱 Elevate your aquatic garden with the power of organic carbon! ## Quick Answers - **What is this?** Flourish Excel, 500 ml by seachem - **How much does it cost?** 328 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/71687881-flourish-excel-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 - • **CO2 Friendly, pH Safe:** Works seamlessly with CO2 injection without risking dangerous pH drops. - • **Iron in Its Most Usable Form:** Enhances iron reduction to ferrous state (Fe+2) for optimal nutrient absorption. - • **Dual Action for Maximum Growth:** Supports photosynthetic intermediates production and plant building simultaneously. - • **Trusted by Thousands of Aquarists:** Highly rated with 4.6 stars from over 5,500 reviews—join the thriving community. - • **Boost Your Aquarium’s Green Power:** Delivers bio-available organic carbon for lush, vibrant plant growth. ## Overview Seachem Flourish Excel is a premium 500 ml liquid supplement providing bio-available organic carbon to aquarium plants. It promotes the ferrous (Fe+2) state of iron for enhanced nutrient uptake and can be safely used alongside CO2 injection systems to boost photosynthesis without compromising pH balance. Ideal for professional aquarists seeking vibrant, healthy aquatic plants. ## Description Flourish excel is a source of bio-available organic carbon. All plants require a source of carbon. This is typically obtained from co2, but, may also be derived from simple organic compounds (such as photosynthetic intermediates). The use of either co2 injection or flourish excel does not necessarily negate the use of the other. Because the processes of producing photosynthetic intermediates and building onto them occur simultaneously, one can derive a substantial benefit with the use of flourish excel either alone or in conjunction with co2. The combination is particularly ideal for situations when continuing to add co2 could result in dangerously low ph levels. Flourish excel also has iron reducing properties which promote the ferrous state of iron (fe+2), which is more easily utilized by plants than ferric iron (fe+3). Why it's different -the reason plants need co2 is to produce longer chain carbon compounds also known as photosynthetic intermediates. Photosynthetic intermediates includes compounds such as ribulose 1, 5-bisphosphateand 2-carboxy-3-keto-d-arabinitol 1, 5 bisphosphate. Although the names are complicated, the structures are quite simple (5 carbon chains). Review: Quality - Very good product, using it for the few years with great results Review: Good buy - Good buy ## Features - Organic carbon for aquarium plants - Promotes ferrous oxide - Can be used with co2 - Flourish excel also has iron reducing properties which promote the ferrous state of iron (fe+2) - Because the processes of producing photosynthetic intermediates and building onto them occur simultaneously ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000256962 | | Best Sellers Rank | #9,103 in Pet Supplies ( See Top 100 in Pet Supplies ) #181 in Water Treatments | | Brand | Seachem | | Brand Name | Seachem | | Customer Reviews | 4.6 out of 5 stars 5,516 Reviews | | Global Trade Identification Number | 00000116045308 | | Included Components | 1 Piece Seachem Flourish Excel | | Item Form | Liquid | | Item Weight | 454 Grams | | Liquid Volume | 500 Millilitres | | Manufacturer | AQUATIC REMEDIES, AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466 Manufacturer AQUATIC REMEDIES, AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466 See more | | Manufacturer Contact Information | AQUATIC REMEDIES , Reg. Off. #5, South Made Street, Kolathur , Chennai , Tamil Nadu-99 ; +91 7042836466 | | Manufacturer Part Number | 075225 | | Model Number | 116045308 | | Packer Contact Information | Eagle Network Supply Pvt. Ltd. , Khasra No. 399 Delhi - 110030 ; +91 1143528338 | | Target Species | Fish | | UPC | 752190152686 000116045308 | | Unit Count | 500.0 Milliliters | | country-of-origin | USA | ## Product Details - **Brand:** Seachem - **Item Form:** Liquid - **Item Weight:** 454 Grams - **Liquid Volume:** 500 Millilitres ## Images ![Flourish Excel, 500 ml - Image 1](https://m.media-amazon.com/images/I/61V3cVDRUYL.jpg) ## Questions & Answers **Q: I have a double sponge filter in my tank. Is it harmful for this product? Can i switch on the filter when using this product ?** A: Yes u can.. thers no issue.. infact its good.... Try to put excel drops in the filter container only.. **Q: what is the quantity for 100 liter fish tank? daily / weekly ?** A: 1 Capful is enough.. They say 5ml for 80 L **Q: It is original?** A: Yes **Q: This product looks like it is over priced. I bought this for a much lower price previously. Why is it over priced now?** A: That basically depends on supply / stock with distributor or retailer ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality *by M***K on 26 July 2025* Very good product, using it for the few years with great results ### ⭐⭐⭐⭐⭐ Good buy *by M***D on 19 July 2025* Good buy ### ⭐⭐⭐⭐⭐ Heavy bubblinh *by A***R on 28 March 2017* Excellent product.. Plants start bubbling within Couple of hours.... The water in the tank looked like boiling water.. It's a genuine product.. But you need to have good lighting and co2 to get best results.. ## Frequently Bought Together - Seachem Flourish Excel 500 ml - Seachem Flourish Freshwater Plant Supplement 500 ml - Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 ml --- ## 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.dk/products/71687881-flourish-excel-500-ml](https://www.desertcart.dk/products/71687881-flourish-excel-500-ml) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-23*