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Fritz Zyme No:9 Nitrifying Bacteria


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16oz 480ml
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32oz 960ml
8oz 240ml

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  • The ORIGINAL LIVE Nitrifying Bacteria
  • Saltwater Specific Species
  • Rapidly Eliminates Toxic Ammonia and Nitrite
  • Allows Safe Immediate Introduction of Livestock
  • Prevents “New Tank Syndrome”
  • Establishes and Maintains a Healthy Biofilter
  • Prevents Fish Loss – FritzZyme Saves Lives!
  • A Safe, Natural Approach to Water Treatment

FritzZyme® 9 contains saltwater specific strains of live nitrifying bacteria proven to reduce fish loss due to toxic levels of ammonia and nitrite. Nitrifying bacteria can take weeks to naturally establish colonies in new aquariums while ammonia and nitrite can reach lethal levels in only a few days. FritzZyme®9 provides the proper balance of bacteria proven to rapidly seed biofilters, greatly reducing the natural cycle time allowing for safe, immediate addition of livestock.


Fritz Industries was the first company to pioneer commercial-scale cultivation of nitrifying bacteria, and has remained one of only a few in the world with continuous production for over 30 years. FritzZyme® 9 may be added to new tanks or established systems any time the biofilter needs fortification including; after water changes, aggressive cleaning, adding new livestock, medicating, or changing filter media. FritzZyme® 9 contains live saltwater-specific species of nitrifying bacteria.


For a new system, dose 4oz (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 or overheat. Store in a cool, dark place. Use before expiration date


Sizes Avaliable : 8oz, 16oz & 32oz.





Additional information

Weight 0.500 kg

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