









🐠 Unlock the secret to instant aquarium stability—don’t let your fish wait!
FritzZyme 7 delivers live, species-specific nitrifying bacteria that rapidly reduce toxic ammonia and nitrite levels in freshwater and brackish aquariums. With a unique buffered formula requiring no refrigeration and a one-year shelf life, it accelerates biofilter cycling and maintains aquatic health after system disturbances. Trusted for over 30 years, FritzZyme 7 is the professional’s choice for fast, reliable aquarium cycling and ongoing water quality management.









| ASIN | B0002DGKAO |
| Allergen Information | Almonds Free |
| Best Sellers Rank | #33,078 in Pet Supplies ( See Top 100 in Pet Supplies ) #274 in Fish Medication & Health Supplies |
| Brand | Fritz |
| Brand Name | Fritz |
| Customer Reviews | 4.6 out of 5 stars 1,941 Reviews |
| Global Trade Identification Number | 00080531802090 |
| Included Components | Fritz Aquatics 80209 FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums, 16-Ounce |
| Item Form | Liquid |
| Item Type Name | Fritz Aquatics 80209 FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums, 16-Ounce |
| Item Weight | 0.3 Ounces |
| Item form | Liquid |
| Item height | 0.02 inches |
| Item weight | 0.3 Ounces |
| Liquid Volume | 473 Milliliters |
| Liquid volume | 473 Milliliters |
| Manufacturer | Fritz Aquatics |
| Target Species | Fish |
| UPC | 080531802090 |
| Unit Count | 1 Count |
R**L
I'm impressed! Don't wait on getting this product!
This is my first time using this product. The reviews spoke highly of this company. I started with ghost feeding the first week, but wasn't getting as much ammonia as I wanted to begin the cycle. I got the ammonia that goes along with this bacteria in a bottle. Got the ammonia up to 4ppm 2 nights ago. Yesterday, this bottle came in, and I dosed it as recommended. This morning I did my tank parameter testing with the API Master Kit. In my cycling tank it read 2.0ppm ammonia, 0 nitrites, and 5.0ppm nitrates! It just skipped right over nitrites! That tells me this product is VERY effective! Considering it's taken me months to cycle other tanks, this is mind blowing to me. I'm glad I listened to experienced folks that using high quality ammonia and live nitrifying bacteria is FAR superior to ghost feeding. I purchased the smallest bottles they have, and I'll still have nearly all of it! Well, I guess that means I'm just going to have to get more aquariums, ha! It's so easy I'm still processing this. Don't sleep on these products, the value far exceeds their price! I'm also glad this can be used as a maintenance for established tanks. It will be a great product to have on hand to maintain a well functioning cycle.
M**Y
Beat on the market to instantly cycle tanks
Brilliant
L**S
PRODUCTO YA CADUCADO
El producto llegó caducado.
A**L
La tapa de la botella llegó rota
La tapa de la botella está partida a la mitad y le falta un pedazo como si hubiera sido enviada así intencionalmente
S**Y
Yes!
This product at the time I purchased is valid and effective. I started a cycle for an African Dwarf Frog and had immense success. These creatures are unknown with contradictions all over the internet. They're exceptional with sensitivity that requires work. I can attest that this product worked for me when I accompanied it with a seeded sponge filter fron an established aquarium
Trustpilot
3 weeks ago
4 days ago