Seachem Tidal 75 Matrix - (Bagged)

Improve your water quality with Seachem Tidal Matrix high capacity biofiltration, which controls the ammonia as well as the nitrite and nitrate levels in your freshwater or saltwater aquarium. Biofiltration is important because it acts as a substrate which allows microorganisms to grow. The 350ml bag will treat up to 75 gallons (300 Liters) of water.