TetraPond® AlgoFin® HSE approved algaecide for Blanketweed directly suppresses blanketweed and other filamentous algae harmless to fish plants and wildlife approved by the Health and Safety Executive (HSE 7695) � independently proven to suppress blanketweed growth and to be safe to fish plants and other pond inhabitants also effective against green water add at 4 to 6 week intervals to prevent blanketweed problems simple to use
