Ecopond Duckweed Controls is a natural approach to controlling duckweed in ponds. It works by using natural bacteria to modify the water chemistry and creating conditions which prevent duckweed from spreading.
Intial dose of 25ml per 450 litres(100 gallons), adding to a watering can or bucket of pond water. Mix well and spread over the pond surface evenly.
As a maintenance dose, add 10ml per 450 litres(100 gallons) weekly until duckweed stops growing.
-Cannot be overdosed
-500ml treats upto 4500 litres (1000gallons)