I have a teeny 2 year old Sebright rooster and some very large hens. Black australorp, production reds, and dark brahmas. I have had 14 eggs in my incubator for the past week. 10 are large eggs, and 4 are bantam eggs. I candled them all today and only the 4 bantam eggs appear to be developing. The 10 large eggs aren't showing any veins or any sign of development at all. Heres an example of what most of the 10 eggs looked like while candling: This next egg has a dark spot in it. I think it may just be a meat spot though. The next photos are my bantam eggs. They are definitely developing. They were moving a lot in their little eggs. The embryo is very close to the air sac, is this normal? What do you guys think? Do my large eggs look like duds? I don't want them to explode in my incubator and cause a hazard to my bantam eggs. Should I wait a few more days and then re candle, or should I just discard them now? Thanks in advance.