Fritz Pond A.C.C.R. is a unique, highly-concentrated powder that completely, instantly and safely detoxifies ammonia, chlorine and chloramine in all types of ponds and water gardens. Fritz Pond A.C.C.R. is non-toxic. Ammonia poisoning is a common killer of pond fish. Ammonia is produced by decomposing plants, algae, fish waste and uneaten food. Dangerous ammonia levels often occur in new ponds or in an established pond when adding new livestock, when a filter stops working due to power or mechanical failure or if existing beneficial bacterial colonies are lost due to the use of medications or sudden change in water conditions. Fritz Pond A.C.C.R. will not alter pH or deplete oxygen levels. Fritz Pond A.C.C.R. is a true complete water conditioner that not only neutralizes toxic ammonia but also the chlorine and chloramines found in tap water. Fritz Pond A.C.C.R. is extremely safe even when overdosed.