Pond Boss Forums GENERAL QUESTIONS Water chemistry Questions on keeping fish alive in my Aquaponics

A 2" fish will produce about 0.45 mg of Ammonia per day.This amount disproportionately increases as the fish grow. A 4" fish will produce about 3.5 mg of Ammonia per day. Your biofiltration must be capable of handling the Ammonia level produced by he final weight/size of the fish at harvesting.
Any pH swing over 0.5 could eventually cause problems.