Dosage:

The required amount of barley straw is worked out on the surface area of your pond NOT THE VOLUME!!

An initial dose of between 25g and 50g per m^2*.

4-6 months later this should be replaced with 10-25g per m^2*.

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.

Timing:

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.