" I use Day 1 thru 18 a 40 to 50% range in humidity, Day 19 thru 21 a 60 to 70% range."
Took this from a post--this is really the norm to use and I use at the moment--My humidty has been 40-53% and temps well thats another story because Im a dorkie newbie...anywhere from 97-104 even a bad 110 spike for a while-Im on day9 now so out of 38 eggs-I hoping for 1 now!!! Good luck