Oxygen powered algaecide works on contact for immediate algae control. Use this multi purpose granular formula to treat, control, and prevent a broad spectrum of algae - even stubborn string algae. Also helps breakdown unsightly organic buildup. For water gardens and koi ponds. EPA-registered. 2 lbs treats 20,000 gallons.
Versatile, granular algaecide for ponds and water gardens
Works on contact to control pond algae - even stubborn string algae
Also treats algae growing on surfaces around waterfalls and water features
