Thanks for all the advice.
She was sound asleep every time I checked on her last night. This morning I took her out of the tank, and that eye is way worse. It was bubbled to the point that she couldn't see out of it. I used a wet paper towel to clean it out, and it looks much better. I plopped her down in the food bowl, as I've never seen her eat since she got separated. And she preceded to have two bowel movements in a matter of five minutes. So perhaps I just missed her eating. Right now she's standing at the front of the tank chirping.
I have a few boiled eggs I made for the chicks a couple of days ago. I tried giving the whole group the first one and they hardly touched it. I'll try giving her half of one as soon as I get off the computer.
I'm going to avoid the molasses, but I will put some sugar in her bowl of water, and some in the syringe if I give her a few drops myself. I've given her a few drops of ACV already, and will continue to do so.
And I'll have to search through the house to see if we have a mirror laying around. That's a great idea!
Thank you again everyone! Y'all have been a godsend!