Matrix™ is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste. Every Tidal™ filter comes with a bag of Matrix™ to get you started.

Matrix™ for the 35, 55, 75, and 110 units comes pre-bagged in Seachem Zip Bags, which feature durable seams & a corrosion-resistant zipper.

High capacity biofiltration
Controls ammonia, nitrite, and nitrate
Highly porous - enormous surface area (>~700 m²/L)
Supports aerobic and anaerobic bacteria species

Matrix™ is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste. Matrix™ is a porous inorganic solid about 10 mm in diameter. Each liter of Matrix™ provides as much surface (>~700 m²) as 170 liters of plastic balls! Plastic bio-materials provide only external surface area, whereas Matrix™ provides both external and internal macroporous surface area. These macropores are ideally sized for the support of nitrifying and denitrifying bacteria. This allows Matrix™, unlike other forms of biomedia, to remove nitrate along with ammonia and nitrite, simultaneously and in the same filter.

Matrix™ is completely inert and will not breakdown. It need not be replaced. Since the majority of the bacteria are internal, Matrix™ may be rinsed when needed without damaging the filter. Matrix™ is compatible with all types of wet or wet-dry filters.

SEACHEM Matrix (For Tidal Filter)