Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria is the ultimate solution for maintaining a healthy and thriving reef aquarium. Designed to prevent new tank syndrome, this innovative product works instantly to establish a robust biofilter in newly set-up aquaria, ensuring your fish and corals have a safe environment from day one. With One & Only, you can effectively manage ammonia and nitrite levels, crucial factors for the wellbeing of your aquatic life. This unique formulation contains live nitrifying bacteria that are free from sulfur or any unpleasant odors, making it a user-friendly choice for both novice and experienced aquarists. Whether you're setting up a nano tank or a larger reef setup, this product is your go-to for a seamless cycling process. Experience the benefits of a stable and balanced aquarium ecosystem with Dr. Tim’s trusted expertise, and give your underwater world the best start possible for just $20.99.