Kordon Amquel Plus Aquarium Water Conditioner - Instantly Detoxifies Ammonia, Nitrite, Nitrate, and Chlorine Remover for Freshwater & Saltwater Aquariums, 8 Ounces;

Unique water conditioner providing actions needed for safe aquarium and pond keeping for fishes and invertebrates. Nontoxic and saves on the need for as many water changes as would otherwise be required. Removes/detoxifies all of the kinds of toxic nitrogen compounds in the water.