Tetra Pond AlgoFin is an effective and safe anti-algae agent designed to address persistent algae problems in garden ponds. It has an intensive effect on thread, floating and lubricating algae, preventing further algae growth. This product comes in a convenient 250ml size, making it easy to use and store for multiple treatments. The special, highly active ingredient ensures crystal-clear water for a healthy pond environment. Use AlgoFin to keep your pond looking its best and to enjoy a healthy aquatic ecosystem.