Did my day 7 candle last night all my eggs seem to be developed but the welsummer eggs I left them in there hoping I just couldn't see because they are so dark
They really do get dark. I've hatched them before. Have to wait for that air sac look..is it getting larger with time. That's great that you are seeing development in the others though, that's always a good feeling that there is some good going on in that bator.

Sounds like they are due soon? Maybe?