Dissolved organics and sludge build up, reducing the oxygen concentration in the water, create a breeding ground for disease causing, pathogenic bacteria. By digesting sludge and reducing dissolved organics, Ecofix reduces organic pollution, increases the concentration of dissolved oxygen in the water and creates and maintains a healthy ecosystem in your pond. - Makes pond water clean and clear - Breaks down dead algae - Increases oxygen level in pond water - Treats up to 2,000 gallons