Pond Solutions Ultimate Water Conditioner for PondsPond Solutions Ultimate is a full function water conditioner that efficiently makes pond and aquarium water safe for fish. It removes chlorine and chloramines, detoxifies nitrite and heavy metals, and eliminates toxic ammonia while replenishing your fishes' protective slime coats. Full function water conditioner for ponds and large aquariums Eliminates toxic ammonia, chlorine, nitrites, heavy metals and more Replaces protective slime coat on fish skin