Fluval aquarium water conditioner offers total protection for tropical fish, neutralizing chlorine, chloramines and harmful metals to make tap water safe. Perfect for water changes, transporting fish and setting up new tanks. Fish stress can be caused by a variety of factors, including transportation, handling and acclimatization to a new environment. Stress can make fish more susceptible to a number of serious diseases and infections. Fluval water conditioner uses pure herbal extracts to minimize fish stress and help pets live longand healthy lives. Use for adding new water, water changes, new tank set ups, fish transport, and cuts and wounds.