Barley straw is 100% Natural Pond Water Treatment to clear algae, blanket weed and green water. Each bale in this twin pack will treat 1,125 litres of pond water for 3 months. The treatment can take 2 - 6 weeks and will be dependent on water temperatures and other pond conditions. Barley straw breaks down naturally in your pond to create peroxide which kills algae and is safe for fish and wildlife.

Product Details;

• Natural water treatment
• Fish, plant and wildlife safe
• Twin pack
• Treatment will take 2-6
• Each bale treats 1,125 litres - 250 gallons for 3 months