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 204 reviews
Jonathan C. (Wichita Falls, TX, US)
It works

New to this hobby...first tank. It's dirted with sand and plants. 6 weeks and constant ammonia, couldnt get any nitrites. Kept pouring in other "starters"....nothing. Everything I've poured in the water I've smelled fist. Something I noticed is all these other starters really dont smell. When bacteria eat things they stink. I've learned that an aquarium is essentially some what of a septic tank. Guess what Fritz smells like! This stuff works! Poured it in that evening after it was delivered and the next morning I had nitrites and no amonia!....crazy over 10ppm nitrites. Did several partial water changes over about 4 days and then over night nitrites down to about .25 ppm. I can finally put fish in my aquarium!

Zach B. (Everett, WA, US)
Worked as advertised

Greatly accelerated the establishment of nitrogen cycle in a brand new tank (took a little over two weeks to get it tuned to where parameters were comfortably even after a slight spike in ammonia and nitrites).

Dustin (Whitestown, IN, US)
Excellent Stuff

This stuff works beautifully. I had noticeable and measurable change in my new tank within 12 hours of adding it. Prior to using Fritz Zyme 7, I tried three other box store bacterial starter solutions/orbs and all seemed to fail miserably.

T. (Cortland, NY, US)
This stuff is great

Seems to be the best product for what you're getting. Aquarium Co-Op only sells stuff they trust!

Leigh A. (New Ulm, TX, US)
Fritz Zyme 7 Live

Been using Fritz Zyme for a couple years. I mostly use after my weekly water changes. As always Aquarium Co-Op had super fast service.