This is our first hatch and we have a Hovabator 1588. 8 of our chicks hatched anywhere from 18-21. We have 1 egg that still hasn't hatched as of today. We did put that egg in the next morning after the other eggs had been in the bator, so technically for THAT egg, it is day 23. When I candled it all I could see was black with the air sac tilted at the top. It is a Black Copper Marans egg (I don't know if they breed makes a difference). Since the other had been born so many days prior, we quickly took out the other chicks to move them to the brooder and then left this one in the bator by himself. When we moved the other chicks out, I stayed at the bator and made sure that the humidity went back up right away and it did so the egg really wasn't without the humidity for more than 1 minute tops (I am sure it wasn't even that long, but I am estimating). We haven't heard any noise, no pips, etc... How long do we wait on this guy? Could something have happened to him? Anyway to tell if he's still alive? I keep checking humidity and pips and nothing.