Seachem Matrix 500ml

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Seachem Matrix is a porous inorganic solid approximately 10mm in diameter, and each litre of Matrix provides as much surface area as 170 litres of plastic balls. Matrix provides bo th external and internal microporous surface area, and these pores are ideally sized for the support of nitrifying and denitrifying bacteria. This allows Matrix to remove nitrate along with ammonia and nitrite, in the same filter.Matrix is completely inert and will not breakdown. It doesn’t need to be replaced. Since the majority of the bacteria are internal, Matrix may be rinsed when needed without damaging the filter.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.**This dosage may differ from your packaging. Based on updated studies, we've found Matrix™ treats even more water than previously asserted. Show more