Dosage: The required amount of barley straw is worked out on the surface area of your pond. An initial dose of between 25g and 50g per m2*. 4-6 months later this should be replaced with 10-25g per m2*. Although the barley straw is safe for use with aquatic life, excessive amounts may lead to deoxygenation. It is recommended not to exceed 500g/m2 *More straw may be required if the water is muddy, than in clean waters. When to use: Although the straw can be applied any time of year, it is best to add the nets of straw to your pond very early in the spring, prior to any algae or blanket weed being visible. How it works: As barley straw decomposes, natural chemicals are released which inhibit the growth of algae. It can take 6-8 weeks to notice any results from the straw, however once the straw begins to decompose, it will remain active until it has almost completely decomposed.

This is good clean barley straw straight from the farm. Each individual net weighs approximately 65g. Barley straw for the control of algae in ponds.