Seachem Tidal 55 Matrix – 250 ml (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 250ml bag will treat up to 55 gallons (200 Litres) of water.