Use with regular partial water changes and when replacing lost or evaporated water. Can be used in both fresh and saltwater. Instantly neutralizes chlorine, chloramine, chlorine dioxide, copper and other heavy metals, while not scavenging oxygen as otherdechlorinators do. Contains a pH buffer. Contains 2 slime coat ingredients for replacement and conditioning, as well as ammonia burn in pond fish. Not harmful to fish or plants. Helps establish, restore and maintain the natural biological and chemical balance of any pond, year round.