Complete Bioculture for Establishing Biological Filtration & Rapidly Improving Water Quality Overview Complex system of non-pathogenic aerobic and anaerobic microbes, as well as naturalenzymes, specifically formulated to establish biological filtration in new aquarium set-ups,and to enhance the rate of nitrification, denitrification, and organic waste degradation inmarine and freshwater aquaria through complete nutrient remineralization. Reduces nitrates and phosphates Used the world over for more than 12 years Veterinarian Pathologist tested Supplied in a state of suspended animation for maximum longevity. Formulated utilizing extensive data compiled by microbiologists Sizes 125ml |250ml | 500ml | 1L | 2L | 4L | 20L | 210L
