Description
Fritz FritzZyme 7 Freshwater Live Nitrifying Bacteria comes in a 16 fluid ounce bottle built to support the biological side of your freshwater aquarium. Fritz formulates it with specific strains of live nitrifying bacteria.
Quick facts
Species: Fish (freshwater aquarium)
Size or dimensions: 16 fluid ounce bottle
Form: Live bacteria product
Material or key ingredient: Live nitrifying bacteria, specific strains selected for this freshwater formula
Why owners like it
Contains live nitrifying bacteria, the organisms responsible for converting harmful waste into safer compounds in your tank.
Fritz selected its strains for this freshwater formula, so it is not a generic bacterial blend.
The brand says these strains are proven to reduce fish loss caused by toxic levels of ammonia and nitrite.
Formulated specifically for freshwater aquariums, matching the bacterial needs of a freshwater biological filter.
Sized at 16 fluid ounces, giving you a larger supply to work with for bigger tanks or extended use over time.
Think of it as a tool for the moments when your tank’s biological filtration needs the most help, whether you are just starting out or working through a rough patch. Because it is a live product, it is meant to be added directly to establish or reinforce your tank’s bacterial colony.
Questions owners ask
When should I use FritzZyme 7? If your freshwater tank is cycling, recovering from a spike, or simply due for a boost to its beneficial bacteria, this bottle gives your aquarium’s biological filtration the live bacterial support Fritz designed it to provide.
What kind of aquarium is it made for? It is formulated specifically for freshwater aquariums, matching the bacterial needs of a freshwater biological filter.
What size does it come in? It comes in a 16 fluid ounce bottle, a larger supply for bigger tanks or extended use over time.






