4 Pack Microbe-Lift Nite Out II Nitrifying Bacteria [Aquarium Bio Additives, Aquarium Clearance, Bulk Aquarium Supplies, Microbe-Lift] 32 oz (4 x 8 oz)

Microbe-Lift Nite-Out II is specifically designed for aquariums with marine life. This special formula is made to help eliminate ammonia by a natural biological process known as nitrification. * Initiates nitrification and promotes stable nitrification * Provides stable cold weather nitrification * Safe to use around plants and animals The cultures inside of Nite-Out II will establish, promote or stabilize and maintain nitrification in aquariums. This will effectively eliminate toxic ammonia.You may also like Lees Ultra Gravel Vac [Aquarium, Gravel Vacs] 24" Long with Nozzle.