Check the listing for details. API Pond and Waterfall Cleaner Deep Cleans on Contact 2.2 Lb: New. Condition: New. Listed at 27.94 USD. Description API Pond and Waterfall Cleaner uses the power of active oxygen to deep-clean pond surfaces, waterfalls, fountains, and birdbaths on contact. It is safe for all fish and aquatic plants and should be used as needed to maintain a clean, clear pond or outdoor water feature. Cleans pond surfaces Deep cleans waterfalls and decorative rocks Keeps fountain and birdbaths clean Safe for fish and aquatic plants INSTRUCTIONS: For ponds: keep pumps and aeration operating during application. Surface debris will turn white when treatment is complete. Remove with a net. If accidently applied to plant leaves, wash off immediately. Add 2 tsp. for every 100 gallons of water, sprinkling evenly around the pond. Wait 24 hours, before repeating treatment.For waterfalls and fountains: turn off water pump. Powder must come in contact with wet debris to be effective. Wait 15 minutes before turning the pump on again. Repeat as needed.For birdbaths: sprinkle directly into the birdbath water. Wait 15 minutes, then rinse and refill the birdbath.