The MARINE POWER NITRI-ACTIVE is a completely natural preparation with selected strains of nitrifying and denitrifying bacteria. It accelerates the maturation and stabilization of the aquarium by quickly activating the nitrogen cycle. The unique combined action of aerobic and obligate anaerobic bacteria actively supports the functioning of the aquarium in both aerobic and anaerobic conditions, colonizing the filters and substrate of the tank. The preparation is suitable for both new and mature aquariums. Regular use ensures biological balance and supports the aquarium's self-cleaning processes.