The Biofiltr contains denitrifying bacteria, creating millions of beneficial bacteria and enzymes in the aquarium water that constitute an extremely important part of the ecosystem. Biofiltr should be used in the following cases:

• When the fish population increases
• After treatment
• When changing filter materials
• During plant thinning

By using this product, the aquarium is filled with millions of live bacteria and enzymes, which are essential for the ecosystem. Recommended dosage:

• 20 ml per 40 liters of water for the first time
• Then, 10 ml per 40 liters of water once a week