--- product_id: 48995660 title: "Matrix Bio Media, 1 Litre" brand: "seachem" price: "€ 41.08" currency: EUR in_stock: true reviews_count: 13 category: "Seachem" url: https://www.desertcart.be/products/48995660-matrix-bio-media-1-litre store_origin: BE region: Belgium --- # Supports aerobic & anaerobic bacteria High capacity bio filtration Controls ammonia, nitrite & nitrate Matrix Bio Media, 1 Litre **Brand:** seachem **Price:** € 41.08 **Availability:** ✅ In Stock ## Summary > 🧬 Elevate your aquarium’s ecosystem with Seachem Matrix – where science meets clarity! ## Quick Answers - **What is this?** Matrix Bio Media, 1 Litre by seachem - **How much does it cost?** € 41.08 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/48995660-matrix-bio-media-1-litre) ## 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 - • **Precision Dosage:** Use 250ml per 100L water for optimal filtration performance. - • **Triple-Toxin Control:** Effectively neutralizes ammonia, nitrite, and nitrate for a healthier tank. - • **Trusted by Thousands:** Join 7,000+ happy aquarists who rate it 4.7 stars for consistent results. - • **Dual Bacteria Support:** Fosters both aerobic and anaerobic bacteria to maintain balanced ecosystems. - • **Ultimate Biofiltration Power:** Maximize water clarity with 1 litre of premium Matrix media. ## Overview Seachem Matrix Bio Media is a 1-litre solid filtration media designed to enhance aquarium water quality by supporting beneficial aerobic and anaerobic bacteria. It efficiently controls harmful ammonia, nitrite, and nitrate levels, ensuring a balanced and healthy aquatic environment. Ideal for professional and hobbyist aquarists seeking reliable, high-capacity biofiltration. ## Description Product Description Seachem Matrix 1 Litre Directions Use 250ml of Matrix for every 100 litres of water. Box Contains water treatment Review: Phenomenal biological media—a must-have for a healthy tank! - I bought this Seachem Matrix to add to my main Fluval 307 external filter, and it has been absolutely brilliant. It is highly recommended in the fishkeeping world for a reason, and now I completely see why. The biggest benefit of this stuff is its incredible surface area. Unlike standard ceramic rings that are only smooth on the outside, Matrix is packed with thousands of microscopic internal pores. This means it provides an absolute massive amount of space for beneficial bacteria to colonize and grow. It handles ammonia and nitrite like an absolute champion, keeping the water parameters perfectly stable and safe. Plus, because of its unique structure, it even supports anaerobic bacteria deep inside the pores, which helps knock down nitrate levels too—something very few other media can actually do. It doesn't clog up, it doesn't degrade or wear away over time, and it fits perfectly into the Fluval baskets without restricting the water flow at all. It honestly takes your filtration to a whole new level. If you want a healthy ecosystem and crystal-clear water, this is the best upgrade you can give your filter. Easily a 5-star product! Review: Platinum Standard Bio Media! - I use Matrix across all four of my aquariums, and it’s become my “buy once, trust always” biological media. It’s reliable, easy to use, and delivers the same steady performance no matter which filter I drop it into—canister, HOB, internal, or a sump basket. What I notice in day‑to‑day use The fish stay happy and the water stays stable. Matrix gives beneficial bacteria tons of room to colonise, which helps process waste efficiently and keeps parameters on an even keel. It’s properly “set and forget.” Once it’s in place, I don’t have to babysit it or swap it out every few months. A quick rinse in old tank water during maintenance is all it usually needs. It doesn’t crumble or compact like some ceramic rings. The pieces keep their shape, so flow through the media stays consistent. Ease of setup Rinse it once to remove any dust, pop it into a media bag, and place it after your mechanical stage (sponges/floss). That way, debris is caught before it reaches the Matrix, and the bacteria get clean, well‑oxygenated water. It works in small and large amounts—handy if you’re seeding a new tank or boosting capacity in an established one. Maintenance & longevity I only swish it in tank water when I’m doing a water change. No fancy routines or chemicals required. Because it lasts for years, it’s great value. You’re not constantly replacing media, so the cost evens out quickly—especially if you’re running multiple tanks like I am. Performance tips from my setups Don’t overpack the media bag; allow water to flow through freely. Keep a decent mechanical pre‑filter ahead of it. Less gunk on the Matrix means healthier bacterial colonies and less cleaning for you. It’s not a substitute for water changes, but it makes the system far more forgiving between services. Verdict Matrix is my go‑to for a reason: consistent results, low effort, and excellent durability. After trying plenty of alternatives, this is the one I trust across all four aquariums. For me, it’s the platinum standard of biological media—simple, effective, and worth every penny. ## Features - Warning:Not suitable for children under 10 months. - High capacity bio filtration - Controls ammonia, nitrite, and nitrate - Supports aerobic and anaerobic bacteria species - Model number: 020096 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002A5VIO | | Allergen Information | Gluten Free | | Best Sellers Rank | 6,677 in Pet Supplies ( See Top 100 in Pet Supplies ) 72 in Aquarium Water Treatments | | Brand | Seachem | | Brand Name | Seachem | | Country Of Origin | USA | | Customer Reviews | 4.7 out of 5 stars 7,013 Reviews | | Global Trade Identification Number | 00000116011709 | | Included Components | All | | Item Form | Solid | | Item Type Name | Aquarium Filtration Media | | Item Weight | 1.67 Pounds | | Item form | Solid | | Item weight | 1.67 Pounds | | Liquid Volume | 1 Litres | | Liquid volume | 1 Litres | | Manufacturer | Seachem | | Manufacturer Part Number | 117 | | Model Number | 117 | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Reptile | | UPC | 000116011709 716184580831 | | Unit Count | 1000.0 millilitre | | Unit count | 1000.0 millilitre | ## Product Details - **Brand:** Seachem - **Item form:** Solid - **Item weight:** 757 g - **Liquid volume:** 1 Litres - **Number of Packs:** 1 ## Images ![Matrix Bio Media, 1 Litre - Image 1](https://m.media-amazon.com/images/I/71O+7DlSbKL.jpg) ## Questions & Answers **Q: How is this used exactly? is it genuinely effective at reducing nitrate levels? my ammonia and nitrite levels are a perfect 0ppm. thank you!** A: Yes it does work I used it for months without an issue. My levels reduced as tap water was high I got a 75% reduction but don’t take that as you will get the same results **Q: Do the granules float in water** A: These are not granules **Q: I have a sponge filter (shrimp tank) with nowhere to put this in the filter. Can I just put it directly into the tank?** A: Yes although it's not ideal. Generally bacterial media is kept free of stritus by mechanical filter media, you can't do that if it's lose in the tank. If you have choice I'd certainly give it a go and see how it works. **Q: May I put 4l in a fluval fx6 to replace filter media ?** A: I tried this about 12 months ago not worth the money at all didn’t make much difference to my water quality and most the media is hard grey stone which is basically just stone and has no use in your filter at all. My advice would be go with alphagrog e25 as it’s only £23 for 20 kg and is much better I now have a mix of alphagrog and bio home ultimate and won’t look back. This is just my opinion good look with what ever media you choose to go with ## Customer Reviews ### ⭐⭐⭐⭐⭐ Phenomenal biological media—a must-have for a healthy tank! *by E***Z on 13 July 2026* I bought this Seachem Matrix to add to my main Fluval 307 external filter, and it has been absolutely brilliant. It is highly recommended in the fishkeeping world for a reason, and now I completely see why. The biggest benefit of this stuff is its incredible surface area. Unlike standard ceramic rings that are only smooth on the outside, Matrix is packed with thousands of microscopic internal pores. This means it provides an absolute massive amount of space for beneficial bacteria to colonize and grow. It handles ammonia and nitrite like an absolute champion, keeping the water parameters perfectly stable and safe. Plus, because of its unique structure, it even supports anaerobic bacteria deep inside the pores, which helps knock down nitrate levels too—something very few other media can actually do. It doesn't clog up, it doesn't degrade or wear away over time, and it fits perfectly into the Fluval baskets without restricting the water flow at all. It honestly takes your filtration to a whole new level. If you want a healthy ecosystem and crystal-clear water, this is the best upgrade you can give your filter. Easily a 5-star product! ### ⭐⭐⭐⭐⭐ Platinum Standard Bio Media! *by P***O on 15 January 2026* I use Matrix across all four of my aquariums, and it’s become my “buy once, trust always” biological media. It’s reliable, easy to use, and delivers the same steady performance no matter which filter I drop it into—canister, HOB, internal, or a sump basket. What I notice in day‑to‑day use The fish stay happy and the water stays stable. Matrix gives beneficial bacteria tons of room to colonise, which helps process waste efficiently and keeps parameters on an even keel. It’s properly “set and forget.” Once it’s in place, I don’t have to babysit it or swap it out every few months. A quick rinse in old tank water during maintenance is all it usually needs. It doesn’t crumble or compact like some ceramic rings. The pieces keep their shape, so flow through the media stays consistent. Ease of setup Rinse it once to remove any dust, pop it into a media bag, and place it after your mechanical stage (sponges/floss). That way, debris is caught before it reaches the Matrix, and the bacteria get clean, well‑oxygenated water. It works in small and large amounts—handy if you’re seeding a new tank or boosting capacity in an established one. Maintenance & longevity I only swish it in tank water when I’m doing a water change. No fancy routines or chemicals required. Because it lasts for years, it’s great value. You’re not constantly replacing media, so the cost evens out quickly—especially if you’re running multiple tanks like I am. Performance tips from my setups Don’t overpack the media bag; allow water to flow through freely. Keep a decent mechanical pre‑filter ahead of it. Less gunk on the Matrix means healthier bacterial colonies and less cleaning for you. It’s not a substitute for water changes, but it makes the system far more forgiving between services. Verdict Matrix is my go‑to for a reason: consistent results, low effort, and excellent durability. After trying plenty of alternatives, this is the one I trust across all four aquariums. For me, it’s the platinum standard of biological media—simple, effective, and worth every penny. ### ⭐⭐⭐⭐⭐ It really works if used right *by T***Y on 22 May 2025* This stuff has been a game changer in my setup. I was weekly having to do around a 50% water change to keep my nitrates in check as they were nudging up to 40ppm sometimes. My tank is a well stocked freshwater mostly American Cichlid tank. I have been running 1 litre of this stuff for the last 3 months and my weekly nitrate check is now more like 5ppm. My last weekly water change was more like 20% and still nitrates have stayed this low. I run it in a sump in the last section with the return pump and heaters, I was careful to make sure the flow is within the range this stuff is meant to be effective. I'm so impressed that I've put another litre in, it does take sometime to get to work but excited to see if it will go even lower. ## Frequently Bought Together - Seachem Matrix Bio Media 1 Liter - Seachem Indoor Purigen Organic Filtration Resin - Fresh and Saltwater 100 ml - Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1) --- ## 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.be/products/48995660-matrix-bio-media-1-litre](https://www.desertcart.be/products/48995660-matrix-bio-media-1-litre) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-09*