Pond Algae Control Balls 300ml for Green Water Blanket Weed and Garden Pond Algae Treatment up to 1260 Litres• Pond algae control balls for green water, blanket weed and unwanted algae in outdoor garden ponds• 300ml pot treats up to 1260 litres or 277 gallons of pond water across seasonal applications• Use 100ml including liquid to treat up to 420 litres or 92 gallons of pond water• Suitable for ponds with fish, wildlife and pets nearby when applied as directed• Simple pond algae treatment for use three times a season or more during heavy algae growthPond Algae BallsThese pond algae control balls are designed to help manage unwanted algae in outdoor garden ponds.They are suitable for green water, blanket weed and other common types of pond algae.The 300ml pot treats up to 1260 litres or 277 gallons of pond water in total.Use during the main algae growing season to help maintain a clearer pond appearance.Green Water CareGreen pond water is often caused by algae growth during warmer and brighter weather.These algae control balls are added directly into the pond with liquid from the container.They support regular garden pond care where green algae is present.For best results, measure the pond volume before adding the correct amount.