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Fritz Zyme 7 Live Bacteria (Freshwater)

$ 49.00 until FREE shipping

This is a live bacteria that can be added to a newly established aquarium to speed up the cycling time. This isn't a magical cure all, but will speed up cycling time and water parameters should be monitored during. This 16oz bottle will treat 80 gallons of water for one dose initially. And 160 gallons for an established aquarium that just needs a boost in bacteria.

Directions & Dosage

For new systems, dose 4oz (½ cup) per 10 US gallons. For a large livestock system, new system dosage may be safely increased up to 10x.
For established systems after bacterial loss, use 2 oz (¼ cup) per 10 US gallons.

NOTE: Live product. Do not freeze or overheat. Store in a cool, dark place. Use before expiration date.

Customer Reviews

Based on 16 reviews
It works!

Got my 55 gallon cycled with this. Definitely recommend if you need to add bacteria!

Works well for me

I don’t know how well this stuff works. All I know is I add it after any filter maintenance and whenever adding livestock and I’ve had no issues.


Great product arrived promptly.

Absolutely love this product

This is an excellent product whenever I change the water or add water I pour some in

Great product

I have used this product on my tanks, and it helped my aquarium cycle very quickly, I used it at the end of last week and my aquarium is really looking great, and the fish are doing good now. I started my tank about 3 or 4 weeks ago, and used some other products, but was having problems with it cycling, after using Fritz Zymm 7 it seems to straightened out the problems I had. Very happy with the product, only if Hong I did not like was that you had to use a lot of the product.