To combat all types of algae in garden ponds quickly and effectively Easy to use: determine the required quantity, mix it with pond water in a watering can, pour it evenly over the surface of the pond Quick treatment against green water and thread algae by affecting the algae’s metabolism Copper-free. Harmless for fish and plants Package contents: bottle with dosing cup as lid, or canister. Dosage: 50 ml per approx.