--- product_id: 27717105 title: "GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health, 4 lb" brand: "kolar labs" price: "€ 278.91" currency: EUR in_stock: true category: "Kolar Labs" url: https://www.desertcart.hr/products/27717105-gfo-bayoxide-e33-phosphate-remover-for-freshwater-and-saltwater-aquariums store_origin: HR region: Croatia --- # Effective in both freshwater & saltwater Ultra-pure virgin Bayoxide E33 granules Compatible with reactors & filter systems GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health, 4 lb **Brand:** kolar labs **Price:** € 278.91 **Availability:** ✅ In Stock ## Summary > 🌟 Keep your reef radiant and your fish flourishing with Kolar Labs’ phosphate power! ## Quick Answers - **What is this?** GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health, 4 lb by kolar labs - **How much does it cost?** € 278.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/27717105-gfo-bayoxide-e33-phosphate-remover-for-freshwater-and-saltwater-aquariums) ## Best For - kolar labs enthusiasts ## Why This Product - Trusted kolar labs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Coral’s Best Friend:** Promotes vibrant coral health by maintaining optimal water chemistry. - • **Universal Aquarium Ally:** Perfectly safe and effective for freshwater tanks, saltwater reefs, and even garden ponds. - • **Plug & Play Compatibility:** Seamlessly integrates with reactors, filter socks, canisters, and cartridges for hassle-free use. - • **Premium German Engineering:** Manufactured by LANXESS in Germany, ensuring top-tier quality and purity standards. - • **Phosphate-Free, Stress-Free:** Eliminates harmful phosphates to keep your aquarium crystal clear and your aquatic life thriving. ## Overview Kolar Labs GFO Bayoxide E33 is a high-quality granular ferric oxide phosphate remover designed for both freshwater and saltwater aquariums. Manufactured in Germany to strict purity standards, it effectively reduces phosphates to maintain crystal-clear water and promote coral and aquatic health. Compatible with various filtration systems, this 4 lb pack ensures cleaner, healthier aquatic environments for hobbyists and professionals alike. ## Description desertcart.com : Kolar Labs GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health, 4 lb : Pet Supplies ## Features - HIGH QUALITY: High-quality, ultra-pure virgin Bayoxide E33 granular ferric oxide (GFO) with reduced fines; Removes phosphates from water - CLEANER AND HEALTHIER AQUARIUMS: Reduces phosphates to help keep aquariums clean and clear, and aquatic life healthy - SAFE FOR ALL AQUARIUMS: Works in saltwater and freshwater aquariums, reef tanks, ponds and more - USE INSTRUCTIONS: Works great in reactors, filters socks, canister filters, and filter cartridges. Give a quick rinse to remove any dust from shipping prior to use - MANUFACTURED BY LANXESS in Germany to rigorous quality, performance, and drinking water purity standards for years ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00RI5MK3A | | ASIN | B00RI5MK3A | | Best Sellers Rank | #84,504 in Pet Supplies ( See Top 100 in Pet Supplies ) #751 in Aquarium Water Treatments | | Brand Name | Kolar Labs | | Customer Reviews | 4.4 4.4 out of 5 stars (37) | | Date First Available | December 10, 2015 | | Is Discontinued By Manufacturer | No | | Item Form | Granules | | Item Weight | 16 ounces | | Liquid Volume | 4 Liters | | Manufacturer | Kolar Labs | | Manufacturer | Kolar Labs | | Package Dimensions | 10.5 x 5.8 x 5.7 inches; 1 Pounds | | Pet Type | Fish | | Target Species | Fish | | UPC | 852466003626 | | Unit Count | 64 Ounce | ## Product Details - **Brand:** Kolar Labs - **Item Form:** Granules - **Item Weight:** 16 ounces - **Liquid Volume:** 4 Liters - **Unit Count:** 64 Ounce ## Images ![GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health, 4 lb - Image 1](https://m.media-amazon.com/images/I/51QcVI3z0wL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What media bags are appropriate for this product (in terms of mesh opening size, measured in microns)?** A: Great question! We recommend what is called a “Fine mesh bag” of 100 Microns or higher rating for rinsed media placed in a filter unit. **Q: How do I calculate how much to add without weighing it if I don’t know the density?** A: Hello, thank you for your question. For the GFO HC, there is approximately 15 grams per Tablespoon by volume, so 1 tablespoon would treat 7.5-15 gallons. **Q: Can it be regrnerated?** A: Thank you for the question! We do not recommend regeneration of the GFO. If you have any other questions, please let us know! --- ## 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.hr/products/27717105-gfo-bayoxide-e33-phosphate-remover-for-freshwater-and-saltwater-aquariums](https://www.desertcart.hr/products/27717105-gfo-bayoxide-e33-phosphate-remover-for-freshwater-and-saltwater-aquariums) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-11*