Thanks!! I just dropped it in with the current hatching eggs. Not the most sterile, but it's already humid enough and changing and sterilizing for 1 egg seems crazy. I did a quick candle of the 7 remaining eggs and 2 were early deaths, that I should have pulled, and 5 have drawn down, but I'm not seeing any movement and they haven't internally pipped. I dropped them back in and we'll give em a few more days. We started day 22 an hour ago.
So, if these are the last of the chicks to hatch, that brings it to a total of 23 hatched out of 30.
I have to do some creative chicken moving and will be disposing of 10 baby roosters today.