Fritz Aquatics Fritz Zyme 7 Freshwater Nitrifying Bacteria For Aquariums

• Formulated to immediately work to remove ammonia and nitrite with fast-acting nitrifying bacteria.
• Made for freshwater tanks and reduces cycle time so you can add fish without having to wait.
• The natural bacteria “move in” to your biofilters to establish colonies to keep your tank healthy, and won’t harm invertebrates.
• Prevents new tank syndrome and can be used in established tanks, after water changes, adding medications or introducing new fish.
• Available in 8-oz, 16-oz and 32-oz bottles to suit your needs and aquarium size.

For new systems, dose 4oz (119 ml / ½ cup) per 10 US gallons (38 L). For a large livestock system, new system dosage may be safely increased up to 10x.
For established systems, use 2 oz (60 ml / ¼ cup) per 10 US gallons (38 L).