--- product_id: 41584250 title: "GFO" brand: "kolar labs" price: "601434Fr" currency: CDF in_stock: true category: "Kolar Labs" url: https://congo.desertcart.com/products/41584250-gfo store_origin: CD region: Congo --- # Safe for freshwater & saltwater aquariums Rapid phosphate removal performance Ultra-pure virgin Bayoxide E33 granules GFO **Brand:** kolar labs **Price:** 601434Fr **Availability:** βœ… In Stock ## Summary > 🌟 Clear Water, Thriving Reefs β€” Don’t Let Phosphates Crash Your Aquarium Party! ## Quick Answers - **What is this?** GFO by kolar labs - **How much does it cost?** 601434Fr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [congo.desertcart.com](https://congo.desertcart.com/products/41584250-gfo) ## 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 - β€’ **Premium Ultra-Pure GFO:** Experience crystal-clear water with high-grade Bayoxide E33 granules, engineered for maximum phosphate absorption. - β€’ **Trusted German Engineering:** Manufactured by LANXESS under strict purity standards, ensuring consistent, long-lasting aquarium health. - β€’ **Fast-Acting Phosphate Control:** Slash phosphate levels quickly to prevent algae blooms and maintain vibrant aquatic life. - β€’ **Universal Aquarium Compatibility:** Perfectly safe and effective in freshwater, saltwater, reef tanks, and pondsβ€”one solution for all your aquatic ecosystems. - β€’ **Versatile Filtration Integration:** Seamlessly fits reactors, filter socks, canister filters, and cartridges for hassle-free maintenance. ## Overview Kolar Labs GFO Bayoxide E33 is a premium granular ferric oxide phosphate remover designed for both freshwater and saltwater aquariums. Manufactured in Germany by LANXESS, it offers rapid and long-lasting phosphate reduction, promoting clearer water and healthier aquatic life, including sensitive corals. Compatible with various filtration systems, it’s the go-to solution for professional-grade aquarium maintenance. ## Description In aquariums, the water’s phosphate level plays an important role. Excessive phosphate causes cloudy water and poor fish health in freshwater and saltwater aquariums and serious harm to corals in saltwater reef aquariums.GFO Bayoxide E33 removes phosphates from aquarium water. Its large specific surface achieves rapid and long-lasting phosphate bonding, making GFO the perfect solution for phosphate removal. Compared to conventional adsorption medias, the high iron content of GFO Bayoxide E33 demonstrates significantly increased absorption capacity combined with faster removal performance for highly efficacious and long lasting phosphate reduction that results in a healthier aquarium.Start with a standard dose of 1 gram/gallon and add or change media when phosphate levels start to rise or algae increases. For best results, do not allow phosphate levels to test above 0.05ppm. Bayoxide is a registered trademark of LANXESS GmbHGet to Know Kolar LabsKolar Labs has been the source for premium filter medias in the aquarium industry for years. We provide top of the line filtration medias and components made by leading manufacturers for hobbyists as well as large public aquariums.We are the Sole Distributor for Lanxess Bayoxide E33 GFO, Lewatit DI Resins, Calgon Carbons, as well as other premium filtration supplies. We stand behind all our products and, as a result, have gained the trust of many large aquarium companies. ## 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 | B06XB9WNS9 | | ASIN | B06XB9WNS9 | | Best Sellers Rank | #29,679 in Pet Supplies ( See Top 100 in Pet Supplies ) #257 in Aquarium Water Treatments | | Brand Name | Kolar Labs | | Customer Reviews | 4.4 4.4 out of 5 stars (521) | | Date First Available | February 20, 2017 | | Item Form | Granules | | Item Weight | 1.1 pounds | | Item model number | 9884232 | | Liquid Volume | 1 gallons | | Manufacturer | Kolar Labs | | Manufacturer | Kolar Labs | | Manufacturer Part Number | 9884232 | | Model Number | 9884232 | | Package Dimensions | 5.87 x 3.86 x 3.74 inches; 1.1 pounds | | Pet Type | Fish | | Target Species | Fish | | UPC | 851794007078 | | Unit Count | 1.1 Pounds | ## Product Details - **Brand:** Kolar Labs - **Item Form:** Granules - **Item Weight:** 1.1 pounds - **Liquid Volume:** 1 gallons - **Unit Count:** 1.1 Pounds ## Images ![GFO - Image 1](https://m.media-amazon.com/images/I/61IvWZ153qL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Where should I put this in a Fluval evo 13.5 gal tank? And is it good to mix with activated carbon in a same bag?** A: Thank you for your question! The media works well inside a fine mesh bag, well rinsed, anywhere there is decent water flow (like where you would place a carbon bag). This media can be mixed with the activated carbon in the same bag however, the GFO stays active longer than the carbon so that would be the only drawback. Please let us know if you have any other questions, we are happy to help. **Q: It says it can be used in pools. Are there dosage recommendations on the package** A: It says 1 - 2 grams per gallon in a fine mesh bag. I use it in my 35 gallon saltwater tank but I'm not sure how much it would take in a pool.? The jar has 454 grams in it. **Q: Can this be used in a reactor?** A: Hello, thank you for your question. This product can be mixed in reactor with carbon or used by itself. Please let us know if you have any further questions! The Kolar Labs Team **Q: How do i use this?** A: It's a really small particle GFO so you'll need to use a "very fine" mesh bag. Use an 1/8 to 1/4 cup for 30-40 gals. Rinse it and place the bag pretty much anywhere in your sump's flow/return. It works wonders with phosphates! Replace it every 4 to 6 weeks. I've also mixed it with activated carbon, mix about 1 part GMO to 2-3 parts carbon. ## Frequently Bought Together - Kolar Labs GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health (454g) - Kolar Labs Crystal Cal Activated Carbon – Large Jar, Activated Charcoal for Aquariums and Fish Tanks - Aquatop Media Reactor, 95 GPH – Up-Flow Filtration for Water Treatment – 10-75 Gal – Adjustable Water Pump Included – Reliable Filtration System --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://congo.desertcart.com/products/41584250-gfo](https://congo.desertcart.com/products/41584250-gfo) --- *Product available on Desertcart Congo* *Store origin: CD* *Last updated: 2026-09-04*