Tetra Pond 500ml AlgoFin Blanketweed TreatmentEffectively destroys stubborn blanketweed and other common species of algae in garden ponds including floating and slime algae. Tetra Pond AlgoFin* also prevents further algae growth. *Use algaecides safely. Always read the label and product information before use. Key Benefits: Effectively combats blanketweed, floating and slime algae. Prevents algae growth. Destroys the algae after two to three weeks. Incredibly easy to use with precise dosages. For