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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.
DirectionsUse 250 mL of Matrix for each 200 L (50 US gallons)** of water. Matrix may be placed in any kind of filter, and is particularly effective in a canister filter. Matrix is sufficiently large that no filter bag should be required for most applications. Matrix works well in drip tray systems, but you may find that the larger Pond Matrix is better suited for such applications. Use with Stability to more rapidly establish the bio-filter.
5 Star (25)
4 Star (6)
3 Star (3)
2 Star (1)
1 Star (2)
Average Star Rating: 4.4 out of 5
(37 customer reviews)
37 reviews for Seachem Matrix 2L High Capacity Bio Filtration Treats 800L
Rated 4 out of 5
Independent Melvin from Seoul, Korea, South
I bought this not so long ago and was worried by the reviews but it has been fantastic and It seems the manufacturer has fixed all the issues.
Rated 3 out of 5
Max from Voronezh, Russia
Product could be significantly better or maybe my expectations should be lower I dont know
United States of America
Independent Melvin from Seoul, Korea, South
I bought this not so long ago and was worried by the reviews but it has been fantastic and It seems the manufacturer has fixed all the issues.
Max from Voronezh, Russia
Product could be significantly better or maybe my expectations should be lower I dont know
Oblivion from Strasbourg, France
Not entirely bad, not great either
Honey bear Pearls from Winnipeg, Canada
Product could be better
Napalm Bomb from Poughkeepsie, United States
Faulty product, horrible manufacturer customer service!