Pond Care EcoFix Murky, cloudy water keeps you from enjoying your pond & fish as much as you'd like. In addition, dissolved organics & sludge build up & reduce the oxygen concentration in the water, creating a breeding ground for disease-causing, pathogenic bacteria. By digesting sludge & reducing dissolved organics, EcoFix reduces organic pollution, increases the concentration of dissolved oxygen in the water & maintains a healthy ecosystem in your pond. Helps create a healthy ecosystem for pond fish Makes pond water clean & clear Breaks down dead algae Increases oxygen level in pond water Directions For Use: Shake well before using. Initial Dose or Quick Clean-up: Add 2 oz (60 ml) per 250 US gallon (945 ml) twice a week for 2 weeks. Maintenance Dose: Add 1 oz (30 ml) per 250 US gallon (945 ml) ( cup per 1,000 US gallons) every 2 weeks. End of Season Dose: Add 2 oz (60 ml) per 250 US gallon (945 ml) twice a week for 2 weeks.