KB Barley Straw Extract
King British Barley Straw Extract 250ml
King British Barley Straw Extract controls filamentous algae (including most varieties of Blanket Weed) & clears Green Water. It is more concentrated and faster acting than the traditional practice of sinking tubes of barley straw into ponds. Best results are achieved by using weekly throughout the summer season for maximum effect. Easy to use and harmless for pets & wildlife.
One 250ml bottle will treat up to 56,250 litres of pond water!