Pond Cleaner Tabs naturally promote a healthy aquatic environment with a blend of bacteria, enzymes, and natural barley, Also breaks down fish waste, phosphates, nitrates, and other water pollutants, - Naturally promotes a healthy aquatic environment - Blend of beneficial bacteria, enzymes, and natrual barley - Breaks down fish waste, phosphates, nitrates, and other water pollutants - Each tablet works up to 2 weeks SKU: ATD01-A20044X