Granular algaecide for water gardens and koi ponds. Use to treat, control and prevent a broad spectrum of algae problems. Effects of treatment are immediately apparent (bubbling, bleaching/discoloration of algae). Granular applications sink through the water columns more readily then liquid substances. Utilizes the latest in oxygen technology. Quickly restores your ponds balance.Size is 10 Pound. UPC Code = 015561209076
