Easy-Life Bio-Exit Blue is a new way to prevent excessive algae growth in the aquarium in a biological way, without chemicals. When used correctly, Easy-Life Bio-Exit Blue is not harmful to fish, plants, shrimps and other invertebrates in the aquarium.A microbiological imbalance of soil bacteria can ensure that blue algae or cyanobacteria have the opportunity to grow. Bio-Exit Blue strongly stimulates the growth of heterotrophic soil bacteria. In this way the microbiological balance in the soil can be completely restored.Dosage Easy-Life Bio-Exit Blue:Shake bottle before use. Remove activated carbon. Do not overdose. Balance treatment during 2 weeks:day 1: 10 ml per 40 liters of waterday 7: 10 ml per 40 liters of waterday 14: change the waterno water changes during the treatment.If the result is insufficient, this balance treatment can be repeated.