Clear Water Enzymes are a liquid enzyme used for reducing nutrient loads in ponds, dams and lakes. It is a natural product that greatly improves the overall health of aquatic systems by increasing the amount of beneficial bacteria that can break down pollutants. Clear Water Enzymes treat the cause of the problem (excessive nutrients) as well as the symptoms and are a great alternative to chemical treatments. The standard enzymes are used in lightly polluted ponds, for ongoing maintenance doses and as an economical treatment for large water bodies. 1L treats up to 1.4ML (1,400,000 Litres).