I need to know if I can open my cabinet incubator, while chicks are hatching. I noticed an egg in the last shelve that appears to be leaking. At day 17 I candled and all looked good. What I think happened was when I was turning (it has a slide bar, old 1930's Master Farmers incubator) it cracked up against the metal, tray was not full. So can I open or not. I have 180 eggs in it and they are not my chicks, just the don't want to lose any, I will be losing money. Only get paid for those that hatch. Everything was going so well, now this.