Features and Benefits of oTheraPo include: Establishes and maintains symbiotic microbial population aiding in disease prevention. Biologically supports a healthy aquarium eco-system which results in a healthier breeding environment. Stimulates fish As immune system. Promotes healthy fish growth. Improves dissolved oxygen levels. Aids respiration and gas exchange. Contains both Nitrosomonas and Nitrobacter bacteria. Oxidizes both ammonia and nitrites. Reduces nitrates. Beneficial when overpopulation exists. Reduces environmental stress. Digests fish waste. Seeds and helps maintain biological filters. Compatible with most aquarium flora and fauna. Effective over a wide range of pH conditions. Will not significantly alter the mineral balance of the aquarium water. Eliminates noxious odors. Compatable with oSpecial Blendo.