To ensure accurate dosing of API POND ALGAEFIX algae control, determine pond volume before use. Add 1 teaspoon for every 50 gallons of pond/fountain water, or ¼ cup for every 600 gallons of pond or fountain water. Thoroughly mix into pond water by adding near the pump outflow, waterfall, or aeration device. API POND ALGAEFIX algae control may be mixed in a bucket of the pond/fountain water and dispersed evenly around the pond. Repeat dose every 3 days until algae are controlled. Be prepared to siphon out dead algae. Once algae growth is under control, add one dose per week. Weekly doses will control algae growth and reduce pond maintenance.