This is my excuse for having such bad habits of not candling eggs. Most of what I hatch seems to be marans. I can never see anything except air cell either. I just assume that, if the air cell is shrinking, and there's ablob in there, things are good. If the egg isn't fertile, the whole thing glows.have no idea how anyone can see anything inside Welsummer and Maran eggs, other than the air cell. The lightest Welsummer you could see some veining and a dark cloud, but not much else. I suppose there could be nothing going on inside those eggs or there is and being a rookie I couldn't get enough lumination to see it.