Could I tell if I had any humididty related issues from candleing? I have 13 still in the bator, and they look the same as they did to me... The air sac is still there, and takes up a little less than 1/4 of the inside of the egg. I had read somewhere about fluid in the air sac, and I held the light on the air sac end, and rotated the egg side to side, and there was nothing moving at the bottom of the sac, just you could see the lining move where it starts the chick, and it only move slightly... It is only day 23, and I do not want to start disecting eggs just yet, but is it normal to get half of them to hatch in an 8 hour period on day 19/20, and then be several days later before the rest hatch? Also these were shipped eggs, and I started with 52, with only 23 making it to lockdown. Sorry for all the questions... just want to get more out of this if there is still a chance. If I need to post pics, let me know what you need to see!?