Algae treatment against blue-green algae and cyanobacteria. Helps combat blue-green algae and cyanobacteria. A biological alternative to Easy-Life Blue Exit. Restores the biological balance in the aquarium. Harmless to fish, plants, crustaceans, and other invertebrates. 500 ml. A microbiological imbalance of substrate bacteria can lead to the growth of blue-green algae or cyanobacteria. Easy Life Bio-Exit Blue restores the biological balance and is the biological alternative to Easy-Life Blue Exit. When used as directed, the treatment is not harmful to fish, plants, crustaceans, and other invertebrates. No water change is necessary during use. If the results are not satisfactory, the treatment can be repeated.