FRITZ ZYME 7 Freshwater Aquarium Treatment Live Nitrifying Bacteria 16oz NOT 8oz

Regarding this item:* Live Bacteria that Nitrate for a Quick Cycle: Live, species-specific strains of nitrifying bacteria found in FritzZyme 7 Freshwater have been shown to rapidly lower harmful ammonia and nitrite levels, greatly lowering fish loss and cycle time in both new and existing aquariums.* Adaptable and Simple to Use: In order to maintain a stable and healthy aquatic environment, FritzZyme 7 is ideal for post-maintenance applications, such as after water changes, harsh cleaning, adding new livestock, or when replacing filter media. It can be used in both fresh and brackish water systems.*No Refrigeration Required: This product is specially buffered for long-term stability, so it does not require refrigeration and has a convenient one-year shelf life. This makes it an easy way to maintain your aquarium. ideal for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.