Fritz Zyme 7 Live Bacteria (Freshwater)

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  • Quickly establishes beneficial bacteria in new aquariums and speeds up the aquarium cycling process
  • Helps prevent fish loss
  • Fortifies beneficial bacteria in established aquariums

Fritz Zyme 7 is live bacteria in a bottle. Adding it to your aquarium will help increase the beneficial bacteria count. In a new aquarium this helps in establishing the bacteria that breaks down fish waste, meaning you can add fish to your new aquarium sooner. In an established aquarium, it helps if you are adding additional fish or increasing the amount of food that you are feeding.

Do you already have an established aquarium? Fritz Zyme 7 can be helpful when adding new fish or livestock to your aquarium. Fritz Zyme 7 will also help rebuild the beneficial bacteria population after a power outage, after you have done a deep cleaning (where beneficial bacteria can be disrupted during the cleaning process), and after you have changed filter cartridges or filters. Fritz Zyme 7 can also be used after you have changed water and finished medicating an aquarium to help reestablish beneficial bacteria.

Customer Reviews

Based on 226 reviews
Frances V. (Westlake, OH, US)
Fritz zyme

This worked so well. The fastest I have ever cycled a tank. I will order more when the weather warms up. Very fast shipping to Ohio as always.

Amber M. (Dallas, TX, US)
Fritz zyme 7 live bacteria

This stuff works fast! I was trying to set up a new tank and could not get the tank to stay cycled. I kept having ammonia reading go up and wasn't getting it converted to nitrite or Nitrate. I put this in there, and overnight had 0 ammonia. I was shocked. Will keep this on hand for cycle bumps or for new tanks. Great product!

Ernest L. (San Lorenzo, CA, US)

Product works exactly the way it supposed to. I am very happy With the results.

Joshua W. (Uncasville, CT, US)
Great stuff!

I used API on one 5G tank and Fritz zyme 7 on the other. The Frtiz Zyme 7 tank cycled much faster! Also Aquarium co-op ships REALLY FAST! will definitely continue doing business here! Check out their YouTube channel too!

Kathryn S. (Seattle, WA, US)
The perfect product

Excellent product! If this doesn’t clear up clouded water and algae problems, nothing will!