I run LEDS, so 72 degrees is way too cold. I stay in between 80-83 for my entire grow. I drop it to 75 for the last 2 weeks of flower, but I never get as low as 72 unless the lights are out. As far as humidity is concerned, 55-60%. Sufficient air flow should prevent any molding, and of course a dehuey wouldn’t hurt at all, but if your extraction fan is on humidity shouldn’t be much a problem, that is if you’re in a tent. This is what I run an I have absolutely no problems.