I am trying to hatch eggs for the first time as a learning experience for myself and my kids. Since it is my first time, I don't know what the heck I am doing! I have read and read and read some more on incubating, hatching and brooding and it all sounds so easy and straight forward, but I can't find a real answer on why I can't see inside some of the eggs. I have a dozen EE eggs and a dozen Black Australorp eggs. I can see inside some of the eggs but many are almost black except the little air pocket at the end. I candled at 7 days and now 10 days to see what I can see. I am using a small hand held LED flashlight for most of it and it works great on some. Others, not so much. I even tried using a million candle power spotlight through a hole in a box but that didn't help either. Some eggs I can see movement or an eye and some just veins. And some, nothing. I don't want to destroy the whole batch if one explodes so what should I do? How do I know what is going on in there and whether or not I should be getting rid of some of these? HELP!!!