Barley straw is the de-facto natural treatment for fillamentous algae or better known as, blanket weed! Barley Straw Extract is an alternative to throwing bails of straw in your pond and is ideal for wildlife ponds or ornamental ponds with fry and frogs.
Shake bottle well and take note that this product cannot be overdosed.
Mix the correct dose in a clean bucket of pond water, and then pour evenly around the pond.
Control of blanket weed is best achieved by using Barleyclear before the water warms up in spring and continuing throughout the season.