FritzZyme® 7 Nitrifying Bacteria 236ml
FritzZyme® 7 contains live freshwater-specific strains of nitrifying bacteria proven to reduce fish loss caused by toxic levels of ammonia and nitrite. In new aquariums, nitrifying bacteria can take weeks to establish naturally, but ammonia and nitrite can reach lethal levels in just a few days. FritzZyme® 7 provides a balanced mix of bacteria to rapidly seed biofilters, significantly shortening the natural cycling time and enabling safe, faster addition of fish.
FritzZyme® 7 can be added to new tanks or established systems whenever the biofilter needs support, such as after water changes, aggressive cleaning, adding new fish, medicating, or changing filter media.
Why add nitrifying bacteria?
Nitrifying bacteria convert toxic ammonia into less harmful nitrite, and then into nitrate. This process is essential for maintaining a healthy aquatic environment. Without sufficient bacteria, ammonia and nitrite can build up quickly, leading to fish stress, illness, or death.
| Product Details |
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| Product Name: FritzZyme® 7 Nitrifying Bacteria |
| Volume: 236ml |
| Application: Freshwater aquariums |
| Form: Liquid culture with live bacteria |
| Usage: Add to new or established tanks during biofilter maintenance |
FAQ
How long does it take for FritzZyme® 7 to show results in a new aquarium?
Results may be visible within a few days after addition, with noticeable improvement in water stability and reduced ammonia levels within 7 to 14 days depending on tank conditions and fish load.
Can FritzZyme® 7 be used in a tank with fish already present?
Yes, FritzZyme® 7 can be safely added to established tanks to reinforce the biofilter, especially after water changes, filter cleaning, or fish additions.
Is FritzZyme® 7 suitable for saltwater aquariums?
Please contact customer service
Lillian Gray –
Used FritzZyme® 7 after setting up a new 20-gallon freshwater tank. Ammonia levels dropped within 5 days, and my fish showed no signs of stress. The product worked quickly and made the cycling process much easier.
Jane Rampling –
Added it after a heavy water change and filter cleaning. The tank stabilized faster than expected. My fish stayed healthy, and I didn’t have to wait weeks for the filter to establish bacteria.
Joanne Wallace –
Great product for new aquarium owners. I used it twice—once at setup and once after adding new fish. The water quality improved noticeably, and I’ve had no ammonia spikes since.