The Seachem Matrix 4L / 1 Gal is a high-porosity biological filter media designed to help aquarists maintain cleaner and safer water by promoting powerful biological filtration inside your filter system.
It is often used in canister filters, sumps, and hang-on-back setups where you need robust support for beneficial bacteria colonies that break down nitrogenous waste.
What Sets It Apart
High Surface Area For Beneficial Bacteria
Matrix’s highly porous structure provides extensive surface area to support both aerobic bacteria which convert ammonia to nitrite, nitrate and anaerobic bacteria which help reduce nitrate. This dual action can contribute to more complete nitrogen cycling in your tank.
Durable And Long-Lasting
As a completely inert inorganic media, Matrix won’t break down over time, meaning you don’t need to replace it frequently once established, often a one-time investment for many setups.