PLEASE HELP!!!!! first hatch, 46 egss, 1st hatched at 23 days, black 48 hrs and still not standing or eating or drinking. 2 more on day 24, membranes dry and I had to assist, no bleeding. All are not standing. Another teacher just had 1st hatch and was standing 2 hrs later. Hers is yellow, min are all black. Still incubator and I kept it at 99.5 with water in channels. Bldg is cold at night and I think maybe I should have air circulator and that is why I had delayed and low hatch #?. Any suggestions. I'm very sad and worried. HELP!!