Stephen Bros Barley Straw 1kg
Barley Straw is a great100% natural inhibitor of algal growth.
Not recommended for ponds that have big algal blooms or lots of blanket weed.
This 1kg bulk bag will treat a water surface area of approx 20 square metres.
Takes 6 weeks to become active and lasts for up to 6 months.
Fish and animal friendly.