Seachem Fish Stability New Tank Stabilization is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management. The bacteria used in competing products are inherently unstable. The conditions necessary for their growth and development fall into a very narrow range of temperatures, pH, organic loads, etc. When any of these parameters are not strictly within the proper range, the bacterial culture quickly crashes and dies. Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the cause of fish death: "new tank syndrome". Seachem Fish Stability New Tank Stabilization is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic and facultative bacteria which facilitate the breakdown of waste organics, ammonia, nitrite and nitrate. The bacteria employed by Stability are non-sulphur fixing and will not produce toxic hydrogen sulphide. It is completely harmless to all aquatic organisms as well as aquatic plants, thus there is no danger of overuse.