Aquaactiv Phosless Direct binds excess phosphate and naturally reduces algae growth. It binds hydrogen sulfitives which can cause foul odors. They simply scatter aquaactiv Phosless Direct on their pond, so it is particularly comfortable in the application. The phosphates also hold in anaerobic zones such. B. pond slur. A 5 l of packaging unit binds up to 800 g of phosphate.