Tropic Marin Syn-Biotic Sea Salt is a pharmaceutically pure sea salt with probiotic bacteria and prebiotic bacteria food. The new Tropic Marin Syn-Biotic Sea Salt contains probiotic bacteria for fish and shrimp and special prebiotic bacteria food to promote probiotic bacterial growth and to create low-nutrient conditions in the aquarium for LPS and SPS corals. The term synbiotic refers to supplements which combine probiotics and prebiotics in a form of synergism. Tropic Marin Syn-Biotic Sea Salt is ideal when you are setting up a new tank and every time you expand the tanks stock. It has been proven that probiotic bacteria help to overcome stress and disease while enhancing the health and well-being of fish and crustaceans. For the best results, the aquarium should have a water change with Syn-Biotic Sea Salt prior to any new stock being introduced.The contained prebiotic additives promote the integration of nitrates and phosphates in bacterial mass for low-nutrient conditions and the