Well the good news is she is not nearly as pasty probe anymore! Diligently dabbing antibiotic cream/Preparation H and adding ACV to water helped a lot with that. I also gave her some pineapple juice and coconut oil to help with constipation.
She stopped losing weight (maybe even gaining a little?!

). I rotate nutridrench/ACV in water and give the whole flock water/nutridrench soaked feed. They love it. I’m careful to change the damp bedding often.
She is still lethargic but after moving them all to a larger brooder in a tub (cardboard lined) with more space and cooler areas, everyones energy is noticeably up! She’s a fighter for sure!
The only problem left seems to be respiratory. She’s had crackly breathing and had been breathing heavily consistently for over a week now. I’m concerned about a secondary infection. Within a few days 3 others started bubbling very faintly but don’t show signs of lethargy yet. Not sure if they aspirated from wet food, from past brooder being hot, or bacteria.
I ordered Baytril 10 online and am waiting for it to arrive on Wednesday.

I think once I administer it (syringe, oral to crackly chicks only) and provide probiotic feed, with time I will finally kick illness out of this flock!
In the meantime she has a very supportive little flock to give her comfort! She’s in the middle of this snuggle fest
I will update when I administer meds. Thanks for checking in!