Detoxifies chlorine including the chlorine in chloramine. Detoxifies all of the kinds of toxic nitrogen compounds in the water. Detoxifies all forms of ammonia/ammonium/nitrites/nitrates from the water, including ammonia in chloramine. Detoxifies toxic pheromones. Does not affect the water's pH (acidity/basicity). Does not interfere with the beneficial nitrifying bacteria or their food sources.