Fritz FritzZyme 9 Saltwater Live Nitrifying Bacteria is an essential product for any saltwater aquarium enthusiast looking to maintain a healthy aquatic environment. This 8 fl oz bottle contains specially selected strains of live nitrifying bacteria that effectively combat toxic levels of ammonia and nitrite, which are common threats to fish health. By introducing these beneficial bacteria into your aquarium, you can significantly reduce fish loss and create a more stable habitat for your aquatic friends. The product is easy to use—simply add it to your aquarium water to help establish and maintain a robust biological filter. With a gross weight of just 0.5 lbs and compact dimensions of 6.31 inches in height and 2 inches in both length and width, it's convenient to store and handle. Enhance your saltwater aquarium experience and ensure the well-being of your fish with FritzZyme 9, a reliable solution for optimal aquarium health.