Rotting Barley Straw releases chemicals, which are toxic to algae but not to aquatic life. Extract of Barley Straw is a concentrated compound of these chemicals.
Supplied in an easy dose bottle - designed to easily measure 10ml doses.
Dosage:
250ml of Extract of Barley Straw will treat 4500 litres of water.
500ml of Extract of Barley Straw will treat 9000 litres of water.
1000ml of Extract of Barley Straw will treat 18000 litres of water.
Bradshaws Direct (UK) - suppliers of pond liners (pvc and butyl liners), underlay, pond pumps, filters, pond vacuums, fish food, water features and many other water garden accessories.
