I have three eggs on my home made incubator. For one egg its day 18 today and for rest of the two its day 16. I candled the eggs today and I realized that the two eggs are doing great. The eggs are almost black except the egg air sack of course while the first eggs which is on day 18 initially seemed to be black when I candled from the pointy tip downwards. Then I candled it from the fat end downwards and realized that the egg wasn't completely black. It was about 75% black from the back not from the bottom. I am not able to take a good picture of the candled egg due to my crappy camera. Can you guys tell me if the embryo died ? The rest of the eggs (on day 16) I just see the air sack and they seem to be good.