API 237ml Stress CoatSize: 237ml Removes chlorine and Chloramines Detoxifies heavy metals Proven to reduce fish stress API Stress Coat is a water conditioner that makes tap water safe, reduces fish stress and heals damaged tissue. It removes chlorine, chloramines, and heavy metals from tap water, and contains the healing power of Aloe Vera which is scientifically proven to reduce fish stress and heal damaged tissue. Use when setting up an aquarium and after water changes.