Fritz Pond Guard is a safe and effective pH-buffered water conditioner that neutralizes toxic chlorine, chloramines and heavy metals found in tap water great for use in all types of ponds and water gardens. Fritz Pond Guard promotes healing and reduces fish stress with aloe vera and vitamin E and provides necessary electrolytes. Naturally secreted by mucous glands, the slime coat is a natural defense system that protects fish from disease, aids in osmoregulation and reduces stress caused by sudden changes in the environment. Fritz Pond Guard provides a replacement slime coat to aid fish that have lost theirs or have been injured due to stress, poor water conditions and handling. Fritz Pond Guard enhances biofiltration by producing a slime coat over the filter media, aiding in the attachment of beneficial bacteria, like those in FritzZyme biological products.