API Stress Coat API has been an industry leader in fish care, nutrition, treatments, testing and pond products for over 50 years, giving them a keen insight into your aquarium and its needs - making them the clear choice for fish enthusiasts around the world. API Stress Coat water conditioner makes tap water safe for fish by removing chlorine, chloramines and heavy metals from tap water. It also contains the healing power of Aloe Vera to reduce fish stress by up to 40% and to heal damaged tissue and wounds. API Stress Coat water conditioner also reduces electrolyte loss in your fish, and should be used when handling, netting, or adding fish to a bag for the trip home from the store. Water conditioner Makes tap water safe for fish Contains Aloe Vera to help heal torn fins and skin wounds Removes chlorine, chloramines, and heavy metals from tap water Use when setting up an aquarium, adding new fish, or changing water After something different? View all Water Care Supplies. New to fish care? View our guide to Setting Up a Fishtank.