Biotec Barley Straw Extract - 250ml

BIOTEC Barley Straw Extract liquid inhibits new green algae growth naturally. No decomposing messy straw. Specially microbial extracted. All natural and ready to use. Neutralizes heavy metals with some phosphate control. Barley Straw Extract is more of a preventative action against algae in a pond or tank compared with Biotec’s Algae Control.