Check the listing for details. API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce. Color: multi natural, Condition: New, Made in United States. Listed at 22.74 USD. Contains one (1) 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 Use when starting a new aquarium, when adding new fish and when changing water and filter media Product Description In a new aquarium, harmful ammonia and nitrite build up from fish waste, often resulting in fish loss or new tank syndrome. The unique nitrifying in API quick start are scientifically proven to quickly consume ammonia and nitrite to help prevent new tank syndrome. Allows immediate addition of fish to a new freshwater or saltwater aquarium. Use when starting a new aquarium, adding new fish, changing water, changing filter media, after medicating, or whenever ammonia or nitrite are detected. Allows instant addition of fish. Helps prevent fish loss. Immediately starts aquarium cycle. Contains live, nitrifying . No refrigeration required. All natural.