Fritz FritzZyme 9 Saltwater Live Nitrifying Bacteria 16oz

FritzZyme 9 contains specific strains of live nitrifying bacteria proven to reduce fish loss due to toxic levels of ammonia and nitrite.

• Use Instructions: For a new system, dose 4 oz (119 ml / ½ cup) per 5 US gallons (19 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 5 US gallons (19 L).Live product. Do not freeze