Completely neutralizes and removes chlorine, chloramine and the ammonia associated with the chloramine, which is added to tap water. Chloramine is toxic to fish as it is a molecule of chlorine and ammonia. Many water conditioners merely break the bond, releasing the toxic associated ammonia. Stress Coat Plus neutralizes the associated ammonia making the water safe for fish. Instantly removes chlorine and chloramine. Contains all natural Aloe Vera to help heal wounds and torn fins. Use when setting up a pond, adding new fish or changing pond water. 16oz bottle - treats 1920gal.