Find the lowest price for:       All ProductsFilter Media     0.0 (0)   Add a review Kent Marine Nitrate Sponge 1 Gallon   Nitrate Sponge 1 gal by Kent. Absorbs the nitrates from your saltwater systems; use in freshwater tanks or tap water to remove toxic ammonia Have a question? Ask the Experts! Compare Prices Product Spec Member Reviews Recommend to Friends Category Chemical BiologicalChemicalMechanicalMedia Bags--------Suggest a new option Something wrong in this page? Let us know! Related products: More Chemical Filter Media Other Filter Media internal use: spec355