Pond Prime, 2 L / 67.6 fl. oz. Removes Chlorine, Chloramine, And Ammonia A Complete Conditioner That Removes Chlorine, Chloramine, And Detoxifies Both Ammonia And Nitrite Provides essential ions and stimulates the natural slime coat Enhances Nitrate Removal; Unlike Competing Products, Pond Prime Does Not Cause A Ph Drop 1 Liter Treats 20000 Us Gallons