

🐠 Fast-track your aquarium’s health with nature’s own cycle accelerator!
FritzZyme 7 delivers live, species-specific nitrifying bacteria that rapidly reduce toxic ammonia and nitrite levels in freshwater and brackish aquariums. With over 30 years of proven industry leadership, this 32-ounce liquid formula requires no refrigeration and offers a one-year shelf life, making it the go-to solution for quick cycling and ongoing biofilter support in all life stages of aquatic pets.






| ASIN | B0002DGKBI |
| Allergen Information | Fish Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 53,279 in Pet Supplies ( See Top 100 in Pet Supplies ) 601 in Aquarium Water Treatments |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,166) |
| Date First Available | 29 Aug. 2012 |
| Item Form | Liquid |
| Item Weight | 8.49 g |
| Item model number | 80210 |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Product Dimensions | 0.05 x 0.05 x 0.05 cm; 8.5 g |
| Quantity | 1 |
| Size | 32 OZ |
| Specific Uses | Indoor |
| Volume | 946 Millilitres |
M**Y
Beat on the market to instantly cycle tanks
Brilliant
F**A
Absolutely Rubbish!
Absolutely rubbish, please don’t buy this…buy gloop instead for the live bacteria…these don’t work.
M**O
Can't report any favourable change to the cycling of my ...
Can't report any favourable change to the cycling of my 120 litre greenhouse aquaponics set-up. May have been due to shipping. Are the bottles exposed to extremes of heat during transport that could destroy the bug population in the soup?
R**L
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.
J**E
I emailed Fritz about some quries and their response was prompt and friendly. been using these for tanks and i do not need to add any salts or whatever. Fzz7 will stink like old eggs and a bit brownish but it is normal, not spoiled. Fritzguard is bluish and dun need it as much as Fzz7. Keep them normally in cabinet and use them every water change. Instructions are clear..
L**S
El producto llegó caducado.
T**G
I tried quite a no of other bacteria for my fish tank and found this to be the most effective. Only a small amount is needed for a stabilised tank.
A**R
Al parecer este producto es muy bueno y cumple con lo que se describe en la página y en las revisiones que se hacen de él, sin embargo lastimosamente llegó a mi casa con la fecha de caducidad expirada hace un año. Si se vuelve a plublicar, seguro lo compro.
Trustpilot
3 weeks ago
1 month ago