I had a chick in the bator that was stuck on his back so I opened it to get him out and put him under a light and the smell smacked me in the face. So I have a rotten egg, I also have 2 eggs that pipped. Do I leave it until they hatched or do I look for it now? I know I already opened it but it will take me a bit longer to find a rotten egg out of about 30, then to reach in and grab a chick.
I wish there were a rule book for incubating lol.
Open it and find the egg quick!! If it blows it could endanger every egg in there.
It should be fine for your other eggs if you add a hot wet paper towel after getting the bad egg out. That will boost your humidity back up right away.