Seachem De-Nitrate - Nitrate RemoverSeaChem De Nitrate removes nitrates, nitrites, ammonia, and organics from both freshwater and marine aquariums. The high porosity of De Nitrate supports the proliferation of both aerobic and anaerobic bacteria that further remove these toxic aquarium byproducts. Removes nitrates, nitrites, ammonia and organics Supports growth of beneficial bacteria that eliminate toxins Suitable for fresh and saltwater tanks Even when exhausted as an organic