a newly installed aquarium with the clean filter material is almost sterile. without active help, it may take several weeks before a stable bacterial fauna develops, resulting in the formation and proliferation of harmful substances that threaten the life of the aquarium, such as ammonia and nitrites, which are fatal to fish. haquoss dm2 is a concentrated high-yield mixed culture composed of selected purifying elements that act as soon as they are inserted in the aquarium where the decomposition of harmful substances begins. the elements present eliminate hazardous substances such as ammonia and nitrites produced by fish and decompose the sludge reducing the mud present on the bottom and in the filter thanks to the aid of the enzymes they are made of. other elements contained in the product eliminate the remains of plants and food, fish excrement and organic softening agents. haquoss dm2 profoundly enhances the self-cleaning capabilities of all freshwater and saltwater aquariums, optimizing water clarity and reducing stress. fish will live healthier and better. use newly installed aquariums - 10ml per 100lt of water daily for 10 days maintenance dosage - 25ml every 100lt of water once a week. 1 cap = 5ml 50ml treat 500lt 100 ml treat 1000lt 250ml process 2500lt 1000ml treat 10,000lt