stocking 75 gallon tank with small fish

[Colin_T]

GH between 30 and 60. KH 40. PH 7.0. NO2: 0. N03: 0. Water temp: 77 degrees

Is the GH and KH in ppm?
If yes, the water is too soft for livebearers (mollies, guppies, platies, swordtails).