I seen someone in some thread or other here say that you can apply some of that liquid bandage over crack's in egg's, but I don't know up until how many day's in that you can do that.
I don't feed the medicated feed to my new hatches. They really don't need that until they are out there on the ground. I just feed them regular chick starter feed, and the vitamin water. They do fine with that.
@jeepgirl13 If you just set them yesterday, then by all mean's give that egg a chance. Check them by candling at day 5 or 6 to see if you see any of those veins.
I'm seeing that you had marked the air-cell in it. I am not seeing any of the spider vein's that should have clearly been seen in an egg with an air-cell that big. That egg is done.
My incubator is a Little Giant styrofoam one also. It's been good to me so far. I'm not going to be hatching any egg's for Sept. I'll be taking a break, and watching what my Aug. hatch grow-out's turn out to be.