--- product_id: 40620744 title: "GFO HC - High Capacity Bayoxide E33HC Phosphate Remover - for Fish Tanks, Aquariums & Ponds, 350g (16oz Jar, 0.77lb), By Kolar Labs" brand: "kolar labs" price: "€ 114.32" currency: EUR in_stock: true reviews_count: 8 category: "Kolar Labs" url: https://www.desertcart.at/products/40620744-gfo-hc-high-capacity-bayoxide-e33hc-phosphate-remover-for-fish store_origin: AT region: Austria --- # 4x phosphate removal power works in salt & freshwater German-engineered purity GFO HC - High Capacity Bayoxide E33HC Phosphate Remover - for Fish Tanks, Aquariums & Ponds, 350g (16oz Jar, 0.77lb), By Kolar Labs **Brand:** kolar labs **Price:** € 114.32 **Availability:** βœ… In Stock ## Summary > 🌟 Elevate your aquarium game with ultra-pure phosphate control! ## Quick Answers - **What is this?** GFO HC - High Capacity Bayoxide E33HC Phosphate Remover - for Fish Tanks, Aquariums & Ponds, 350g (16oz Jar, 0.77lb), By Kolar Labs by kolar labs - **How much does it cost?** € 114.32 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/40620744-gfo-hc-high-capacity-bayoxide-e33hc-phosphate-remover-for-fish) ## 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€’ **Easy Integration:** Seamlessly fits reactors, filter socks, canisters & cartridges - β€’ **Healthier Aquatic Life:** Keeps phosphate levels ultra-low to support vibrant ecosystems - β€’ **Premium German Quality:** Manufactured to strict drinking water purity standards - β€’ **Quadruple Phosphate Power:** Removes 4x more phosphates for crystal-clear water - β€’ **Versatile Aquarium Compatibility:** Perfect for reefs, marine tanks, freshwater, ponds & pools ## Overview GFO HC by Kolar Labs is a high-capacity, ultra-pure phosphate remover designed for professional-grade aquariums and ponds. Engineered in Germany, it removes up to 4 times more phosphate than standard products, ensuring cleaner water and healthier aquatic life in both saltwater and freshwater environments. Compatible with various filtration systems, it’s the go-to choice for reef enthusiasts and serious aquarium keepers aiming for pristine water quality. ## Description desertcart.com : GFO HC - High Capacity Bayoxide E33HC Phosphate Remover - for Fish Tanks, Aquariums & Ponds, 350g (16oz Jar, 0.77lb), By Kolar Labs : Pet Supplies Review: Keeps phosphate down better. - I was using the regular GFO from this brand and from an aquarium website. My phosphate was only going down to about .35 and then would creep up. I started using this one and finally my phosphates are .05! My reef tank has never had phosphates in check until now. Review: Great Product - Great Product ## Features - HIGH QUALITY: High-capacity, ultra-pure virgin GFO HC removes 4x the phosphate in water - CLEANER AND HEALTHIER AQUARIUMS: Reduces phosphates to help keep aquariums clean and clear, and aquatic life healthy - BEST FOR HIGH-END AQUARIUMS: Best used in reefs and high-end marine fish tanks; Works in saltwater and freshwater aquariums, reef tanks, ponds, swimming pools 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: Made in Germany to rigorous quality, performance, and drinking water purity standards for years ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06WLR2H33 | | Best Sellers Rank | #63,128 in Pet Supplies ( See Top 100 in Pet Supplies ) #842 in Aquarium Water Treatments | | Brand | Kolar Labs | | Brand Name | Kolar Labs | | Customer Reviews | 4.7 out of 5 stars 170 Reviews | | Item Form | Granules | | Item Weight | 16 ounces | | Manufacturer | Kolar Labs | | Manufacturer Part Number | 9885948 | | Model Number | 9885948 | | Pet Type | Fish | | Target Species | Fish | | UPC | 851794007108 | | Unit Count | 1 Count | ## Product Details - **Brand:** Kolar Labs - **Item Weight:** 16 ounces - **Item Form:** Granules - **Manufacturer:** Kolar Labs - **UPC:** 851794007108 ## Images ![GFO HC - High Capacity Bayoxide E33HC Phosphate Remover - for Fish Tanks, Aquariums & Ponds, 350g (16oz Jar, 0.77lb), By Kolar Labs - Image 1](https://m.media-amazon.com/images/I/71ntA4cbArL.jpg) ## Questions & Answers **Q: How much volume does of this stuff is 1 gram. Am I supposed to weigh it out on a balance?** 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: is it cheaper than the one sold by BRS ?** A: If you figure cost per pound BRS is still cheaper. **Q: Q granulometria tiene? En reactores se mezcla con carbΓ³n?** A: Hello, thank you for your question. This product has fine granules similar to carbon, but finer. It can be mixed in reactor with carbon or used by itself. **Q: I want to know if these work for reef tanks and if they are more fine dusty or larger sized pellets?** A: I use these for my 125 gallon reef tank. They work great. They do need to be rinsed before you use them. They are a little dusty. But I've had worse. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Keeps phosphate down better. *by S***8 on September 12, 2024* I was using the regular GFO from this brand and from an aquarium website. My phosphate was only going down to about .35 and then would creep up. I started using this one and finally my phosphates are .05! My reef tank has never had phosphates in check until now. ### ⭐⭐⭐⭐⭐ Great Product *by L***S on August 17, 2025* Great Product ### ⭐⭐⭐⭐⭐ Reef success *by D***O on June 27, 2020* Absolutely rocks at keeping phosphates down in my 1300 gallon reef system! Running a bunch of Tangs in a 120L x 48”W x 36”H with a 300 gallon sump. Absolutely recommend this product to anyone wanting to Reef hard! ## Frequently Bought Together - GFO HC - High Capacity Bayoxide E33HC Phosphate Remover - for Fish Tanks, Aquariums & Ponds, 350g (16oz Jar, 0.77lb), by Kolar Labs - Kolar Labs Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks - Aquatop Media Reactor - for 50-200 Gallon Tanks - Includes Adjustable Water Pump - Intake and Output Tubing Included - Versatile Reactor --- ## 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://www.desertcart.at/products/40620744-gfo-hc-high-capacity-bayoxide-e33hc-phosphate-remover-for-fish](https://www.desertcart.at/products/40620744-gfo-hc-high-capacity-bayoxide-e33hc-phosphate-remover-for-fish) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-10-12*