Seachem de*Nitrate 20L (5.3 gal). Is a high porosity filtration product for the removal and control of nitrate in marine and freshwater aquaria by anaerobic denitrification. It is a porous inorganic solid about 4mm in diameter. It can be used in canister filter at slow flow rates or even on the tank bottom as a 'live' substrate enhancer. It does not require a special denitrifying filter or special culture feedings. It is also helpful in controlling nitrite and ammonia. The surface area characteristics of De*Nitrate are similar to Matrix, making De*Nitrate an effective support for the biological filter. Each liter treats up to 400L (100 gallons). Marine and freshwater. This item is a special order item that is drop shipped direct from Seachem. 1 per case.

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