It is important that the environment in which your aquatic life lives in is safe and healthy so that they may thrive. Fritz Complete Full-Spectrum Water Conditioner by Fritz Aquatics instantly removes ammonia, chlorine and chloramines, while detoxifying nitrites and nitrates in freshwater or saltwater aquariums. Finally, you can have your water conditioner and nitrogen cycle management together in one simple step! This concentrated formula will not alter your biological filtration, pH levels, or over-activate your skimmer as it is completely safe! Watch your fish flourish in a secure atmosphere. The 4 oz bottle will treat up to 1,200 gallons.