Tetra SafeStart Aquarium Start-up Water ConditionerTetra SafeStart Aquarium Bacteria and Conditioner reduces toxic ammonia and nitrite, adds live bacteria to promote biological filtration and prevents "new tank syndrome" from affecting fish in your tank. It works quickly to allow the immediate addition of fish in new tanks. Allows immediate addition of fish Reduces ammonia and nitrite Prevents new tank syndrome Safe for all freshwater aquariums Accelerates establishment of the bio filter This patented