Blagdon Duckweed Buster controls duckweed by naturally starving the algae of essential nutrients. Duckweed Buster is pond fish, pond plants and water using wildlife safe.
250ml treats 2,273 litres (500 gallons)
500ml teats 4,546 litres (1000 gallons)
1000ml treats 9,092 litres (2,000 gallons)