Easy Life AlgExit Removes stains caused by green and red algae AlgExit is a safe and effective product for combating almost all types of algae in a freshwater aquarium. Algae, such as beard algae, brush algae and filamentous algae, are effectively wiped out. AlgExit is easy and economical to use and harmless to fish, shrimps, molluscs and plants. The algae growth is first brought to a standstill and then it disappears. Any algae spores that are still present in the water are removed.