Nite-Out II is designed specifically for aquarium waters that contain marine life. Its highly specialized microbial consortium of nitrifying cultures is specially formulated to eliminate ammonia via a natural biological process termed nitrification. The cultures contained in this product will establish promote or stabilize and maintain nitrification in aquarium waters eliminating the toxic effect of ammonia. This liquid nitrifying bacteria contains select strains of Nitrosomonas Nitrospira and Nitrobacter. Nitrosomonas oxidize ammonia to nitrite and Nitrobacter and Nitrospira oxidize nitrite to nitrate.