(2) API Quick Start 16oz Bottles for Freshwater and Saltwater Aquariums.

About this item Contains 2 API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle Allows instant addition of fish when starting a new aquarium Reduces compounds harmful to fish when used routinely Helps prevent fish loss in freshwater and saltwater aquariums Pack of 2