GC20 Greenclean Granular Algaecide – 20 lb. pail

• Kills algae on contact with results visible in minutes
• For use in ponds and water features containing live fish and plants
• Effective, eco-friendly chemistry – no copper residue
• Controls string algae in ponds, streams and waterfalls
• An EPA registered algaecide

Directions for Use

Use 1/2 pound (1 cup) per 1000 gallons of water for existing problems. Use 1/4 pound (1/2 cup) per 1000 gallons of water as a maintenance dosage. For large ponds apply as preventative at 16 to 50 lbs. per acre-foot or as treatment of existing problem at 50 to 180 lbs. per acre-foot. Best to apply early in the morning on a clear sunny day. Turn of circulation. Apply to affected areas, including waterfall and streams. Turn circulation back on after 10-20 minutes. Skimming/netting dead algae helps prevent further algae. Always read and follow label directions.