Fibsog
Aquarium Advice FINatic
What is a good and bad percentage? Is 5% bad?
Needs to be .25 and under
In a cycled tank you will have 0 ammonia.
If you are still cycling your tank you need ammonia to build your bacteria colony.
Cycling with fish keep ammonia about .25 ppm
Fishless cycle can do anywhere from 1-4 ppm depending on the method you are using.