The Gardening Naturally barley straw balls 300ml are the natural way to create and maintain a crystal-clear pond. The balls are made of organic polymer which when added to water release natural barley straw extract. 

Simple to use they effectively remove algae from the water. Add 100 ml of barley straw balls including the liquid(approx 1/3rd of the pot) for every 100 gallons (450 litres) of pond water. Use 3 times a season, more if the problem is severe.

Barley straw balls are safe for pondlife, wildlife and pets. 

Simple to use they effectively remove algae from the water. Add 100 ml of Barley Straw Balls for every 100 gallons (450 litres) of pond water.