Against green algae in freshwater aquariums, e.g. against beard algae, brush algae and thread algae. The agent is completely harmless to fish, shrimps and other plants. Remove the activated carbon filter before use. Do not overdose.

Immediate result: add 10 ml per 100 liters of water as a weekly dose over 4 weeks.

Prevention of algae production: 5 ml per 100 liters at 2-week intervals.