--- product_id: 11424689 title: "PO4x4 Phosphate Remover 500ml by Reef" brand: "reef interests" price: "Β£2.09" currency: GBP in_stock: false reviews_count: 2 url: https://www.desertcart.co.uk/products/11424689-po4x4-phosphate-remover-500ml-by-reef store_origin: GB region: United Kingdom --- # Phosphate removal 500ml capacity Regeneration feature PO4x4 Phosphate Remover 500ml by Reef **Brand:** reef interests **Price:** Β£2.09 **Availability:** ❌ Out of Stock ## Summary > 🌊 Dive into Clarity with PO4x4! ## Quick Answers - **What is this?** PO4x4 Phosphate Remover 500ml by Reef by reef interests - **How much does it cost?** Β£2.09 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/11424689-po4x4-phosphate-remover-500ml-by-reef) ## Best For - reef interests enthusiasts ## Why This Product - Trusted reef interests brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Elevate Your Aquarium:** Transform your tank into a thriving ecosystem! - β€’ **Eco-Friendly Regeneration:** Sustainably regenerate for ongoing performance. - β€’ **User-Friendly Application:** Effortlessly integrate into your maintenance routine. - β€’ **Professional Grade Quality:** Trusted by aquarists for superior results. - β€’ **Precision Phosphate Control:** Achieve crystal-clear water with advanced removal technology. ## Overview The PO4x4 Phosphate Remover is a 500ml solution designed to effectively eliminate phosphates from your aquarium, ensuring a healthier aquatic environment. With its unique regeneration capability, this product not only cleans but also maintains optimal water quality for your fish and plants. ## Description PO4X4 Phosphate Remover is a unique chemical engineered polymer based mini pellets that will specifically remove phosphate approximately 4 times more efficient then most GFOs. The PO4X4 polymer is bound to very pure FeOH2. Both the polymer as well as the Iron molecules are able to bind PO4 and by combining these we increased the binding effiency. In addition,PO4X4 contains only Ironhydroxide, normal GFOs consist of a mixture of ironhydroxide as well as ironoxide and only the first form can bind phosphates. This means that PO4X4 with its higher content of Ironhydroxide can bind much more PO4 then your average GFOs can. 500 ml will remove 3 ppm of phosphate and silicate from roughly 16.000 liter of fresh water or 8.000 liter of marine water. Use fluidized filter systems for optimal results, a canister filter can also be used. Do not overdose ! Rapid changes in phosphate can negatively affect your animals. Use small amounts of PO4X4 to gradually lower the phosphate levels in your aquarium. Replace or regenerate (see PO-X4 regeneration salt) your pellets when phosphate levels start to increase again. ## Features - Removes Phosphate - regeneration possible ## Images ![PO4x4 Phosphate Remover 500ml by Reef - Image 1](https://m.media-amazon.com/images/I/2169RcHwn1L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Worked well, but needs different handling than other phosphate media *by A***R on Reviewed in the United States πŸ‡ΊπŸ‡Έ on June 12, 2013* One tip if you're thinking of trying this product: Make sure you have a way to keep it in your media reactor. This product is made up of very small granules of material. When I put them in my reactor (a DIY contraption modeled after a Phosban reactor) and turned on the water flow, quite a bit of the media was flushed out of the reactor by the water passing through it. I siphoned it up, put it back in the reactor with a sponge pad on top and managed to get it to stay put until it was exhausted and I put it aside for later regeneration.In my opinion, this product's best feature is its lack of dust (most GFO based products end up clouding the water unless you rinse them very thoroughly and keep the flow rate down). I had no dust problem with this product. ### ⭐⭐⭐⭐⭐ Five Stars *by A***A on Reviewed in the United States πŸ‡ΊπŸ‡Έ on September 25, 2014* works the best out of all the phosphate reducers I have tries --- ## 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.co.uk/products/11424689-po4x4-phosphate-remover-500ml-by-reef](https://www.desertcart.co.uk/products/11424689-po4x4-phosphate-remover-500ml-by-reef) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*