Fritz pond complete is a concentrated, one-step, full-spectrum water conditioner that detoxifies chlorine, chloramine, ammonia, nitrite and nitrate. Safe to use with all pond fish, plants, and turtles. Use when setting up new ponds, performing water changes, or to quickly alleviate high ammonia, nitrite & nitrate. Fritz complete water conditioner is a concentrated product, a 16oz bottle will effectively treat 4800 us gallons of tap water removing both chlorine and chloramines from municipal water supplies. Fritz complete water conditioner also detoxifies ammonia, nitrite, and nitrates.