Ok... I just slipped a new egg under my broody today... Candled to get a solid control idea and attempted to do the same on the 4 week-9 day old ones... Not sure on them but I'll have a better idea now... I' can see right through the new one where as the others I can see the air sack but not sure if I'm looking at good, early death or just my imagination on the others lol... Oh well if I have to sneak a change of eggs on my husband so be it... He's clueless on the egg game lol...
Btw... Yes I dated the new one