Get rid of unsightly green algae in your pond without the use of harmful chemicals this all natural algae treatment uses biotek technology to keep the water clear by depriving the algae of nutrients safe for fish plants and wildlife it is the perfect way to keep your pond cleansimply add 10ml of algae treatment to a 250ml bucket or watering can filled with pond water and apply to the pond working from the edges inwards reapply after one month then every 2 months for perfect results all year