Ok i am a little on edge because the first two hatches failed except one baby duck. I have chickens now on day 20 in a Brinsea eco 20 and i opened it to add a little water. There are no external pips yet but i heard peeping. Are they going to be ok or did i maybe shrink wrap them? I read the incubating 101 post and it said i could open briefly to adjust humidity but was that before internal pips?