API Betta Water Conditioner is a multi-purpose water treatment that instantly makes tap water safe for betta fish by removing chlorine, chloramines, and heavy metals, in addition to detoxifying ammonia. API Betta Water Conditioner also contains aloe vera to reduce stress and inflammation of damaged tissue, and promotes healing and oxygen transfer across gills, as it creates a synthetic slime coat for your Betta that minimizes susceptibility to disease. The green tea extract ingredient acts as an antioxidant in a betta’s red blood cells.