Microbe-Lift Nite-Out II quickly decreases the ammonia and nitrite toxins in your freshwater or saltwater aquariums. This will keep your marine life safe by converting nitrite to nitrate through nitrosomonas, nitrospira and nitrobacto strains inside of this liquid nitrifying bacterial formula. Nite-Out II will create, encourage or even-out and maintain nitrification for your marine life environment.