Tetra AlgoFin Treats Blanketweed 500ml Solvent Aquarium Cleaner Aquarium Cleaner for Fresh Water  (Pack of 1, Blue, White)

Tetra Pond AlgoFin is an effective and safe treatment for persistent blanket weed and other pond algae. Features & Benefits Intensive treatment for most frequently occurring algae types, such as blanketweed, floating algae and smear algae How it works: Targeted attack on the organism and metabolism of algae, impeding their ability to photosynthesise The special active ingredient is effective over a period of around 2-3 weeks Prevents further algae growth Safe effect To keep algae growth under control long-term Harmless to aquatic plants, fish and microorganisms if used as instructed Incredibly easy and precise dosage