I don't know what particular tests you have, but let's say (for
FW aquarium):
pH 6.7 - 7.5 (in my case 7.0 +/- 0.2)
GH 6 - 12' (12-14 )
KH 5 - 10' (5-7)
NO2 0
ppm (0)
NO3 10-30
ppm (5)
It can vary of course with reference to fauna and flora spieces, you want to rise in your aquarium...