Ammonia Remover 125ml Ammonia is a lethal toxic waste product excreted by fish; bacteria in biological filters usually breakdown the toxic Ammonia into less harmful compounds. This process may occasionally break down and need help to chemically remove the ammonia. The only way to detect ammonia is by using a text kit, ammonia levels should always be kept to zero. Ammonia Remover can also be used to remove harmful chloramine from tap water. Dosage: 1ml of Ammonia Remover treats 5L (1.1gal)