Fritz Ammonia Remover Instantly neutralizes toxic chlorine, chloramine, ammonia and heavy metals. Most dechlorinators have no effect on the highly toxic chloramine in city water. When this tap water is added to an aquarium, the chloramine kills fish, corals and plants. A chemical reaction then gives off deadly ammonia. Fish have no chance of survival! Fritz Ammonia Remover is the safe, easy way to neutralize these toxins. It leaves water fresh, clear, clean and free of toxins, perfectly safe and balanced for all fish and aquatic life. Great for treating ammonia buildup in goldfish, turtle or newt tanks, small bowls, desk-top aquariums and tropical community aquariums. 16 oz. Treats 600 gal.