--- product_id: 253420168 title: "Seachem Flourish Excel Bioavailable Carbon For The Planer Aquarium, 500 ml" brand: "seachem" price: "¥5383" currency: JPY in_stock: true url: https://www.desertcart.jp/products/253420168-seachem-flourish-excel-bioavailable-carbon-for-the-planer-aquarium-500 store_origin: JP region: Japan --- # Boosts photosynthesis efficiency Bioavailable carbon for plants 500 ml liquid volume Seachem Flourish Excel Bioavailable Carbon For The Planer Aquarium, 500 ml **Brand:** seachem **Price:** ¥5383 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your aquarium’s green game—no CO2 tank required! ## Quick Answers - **What is this?** Seachem Flourish Excel Bioavailable Carbon For The Planer Aquarium, 500 ml by seachem - **How much does it cost?** ¥5383 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/253420168-seachem-flourish-excel-bioavailable-carbon-for-the-planer-aquarium-500) ## 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 - • **BPA-Free Safety:** Formulated with BPA-free ingredients ensuring a safe, eco-conscious aquarium environment. - • **Carbon Powerhouse:** Delivers a bioavailable carbon source that fuels lush aquatic plant growth without CO2 tanks. - • **Trusted by Thousands:** Rated 4.6 stars by over 8,400 aquatic plant enthusiasts worldwide—join the thriving community! - • **Dual Mode Flexibility:** Use solo or alongside CO2 injection for maximum plant vitality and vibrant greenery. - • **Photosynthesis Booster:** Introduces key photosynthetic intermediates to accelerate plant metabolism and health. ## Overview Seachem Flourish Excel is a 500 ml liquid bioavailable carbon supplement designed for planted aquariums. It serves as an effective alternative or complement to CO2 injection by providing essential carbon and photosynthetic intermediates, promoting healthier, faster-growing aquatic plants. BPA-free and highly rated by thousands, it’s a trusted choice for professional and hobbyist aquascapers alike. ## Description Seachem Flourish Excel Bioavailable Carbon For The Planer Aquarium, 500 ml : desertcart.ae: Pet Supplies ## Features - Bioavailable carbon source for the planted aquarium - Use as an alternative to CO2 injection or in addition to it - Introduces photosynthetic intermediates ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000256962 | | Allergen Information | BPA-Free | | Brand Name | Seachem | | Customer Reviews | 4.6 4.6 out of 5 stars (8,471) | | Global Trade Identification Number | 00000116045308 | | Included Components | Seachem Flourish Excel 500 ml | | Item Form | Liquid | | Item Type Name | Planted Aquarium Products | | Item Weight | 454 Grams | | Liquid Volume | 500 Milliliters | | Manufacturer | Seachem Laboratories, Inc. | | Manufacturer Part Number | 075225 | | Model Number | 116045308 | | Pet Type | Fish | | Target Species | Aquatic Plants | | UPC | 752190152686 000116045308 | | Unit Count | 1 Count | ## Product Details - **Brand:** Seachem - **Item form:** Liquid - **Item weight:** 454 Grams - **Liquid volume:** 500 Milliliters - **Number of Packs:** 1 ## Images ![Seachem Flourish Excel Bioavailable Carbon For The Planer Aquarium, 500 ml - Image 1](https://m.media-amazon.com/images/I/61V3cVDRUYL.jpg) ## Questions & Answers **Q: What causes this product to kill algae, and does it kill anything else (like beneficial bacteria)?** A: I bought the Seachem Flourish Excel because it seems to be the best solution to a Black Beard Algae problem I'm having, and after studying what it does, and how it does it, I too was worried about the Beneficial Bacteria in my 2 large canister filters.Couldn't find a direct answer to that question, so I sent an e-mail directly to Seachem Laboratories. Here is my question to them and their reply...... Message: I have a 72 gal heavily planted community tank and am having an outbreak of Black Beard Algae. I purchased your product as it seems the best solution to the problem, but I need a question answered before I can use your product. I now understand how your product works, but will this product also kill off the Beneficial Bacteria inside the Seachem Matrix Bio-Media of my 2 large canister filters?! Crashing the cycle in my tank is not an option. Is this product (Flourish Excel) safe to use for the bacteria that maintains the nitrogen cycle of my tank, or will it kill the bacteria in my filter media along with the Black Beard Algae and crash the nitrogen cycle of my tank? Need a straight answer, please, Thank You Seachem Support 10304 (Seachem Laboratories) Sep 23, 2022, 16:31 ADT Hi there, thanks for reaching out! No, Excel will not affect your biological filtration if dosed appropriately. Hope this helps! Seachem Support 10304 Needless to say, I am very relieved, and pleased. Now I can start the process of getting rid of that Black Beard Algae and not worry about crashing my nitrogen cycle. 2 Thumbs Up to Seachem Laboratories! **Q: are they copper free?** A: No. They contain 0.001% copper. Though people have used them in shrimp tanks without a problem, others have had shrimp die, particularly if the tablet got stirred up from the substrate (rescaping, fish burrowing, etc). If there's a chance of your substrate being disturbed, I'd recommend going with API Root Tabs instead, as they do not contain copper. **Q: How I use this for my tank 20 gallons** A: Per the instructions: "On initial use or after a major (> 40%) water change, use 1 capful (5 mL) for every 40 L (10 US gallons). Thereafter use 1 capful for every 200 L (50 US gallons) daily or every other day. For smaller dosing please note that each cap thread is approximately 1 mL." 1 cap = 5ml 1 cap for every 50 gallon equates to 1 ml for every 10 gallons or 2 ml for 20 gallons. **Q: Is the product compatible with freshwater invertebrates, like amano shrimp?** A: I use this product on a regular basis and I have snails and shrimp in my tank. No problems. ## 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.jp/products/253420168-seachem-flourish-excel-bioavailable-carbon-for-the-planer-aquarium-500](https://www.desertcart.jp/products/253420168-seachem-flourish-excel-bioavailable-carbon-for-the-planer-aquarium-500) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-06*