Underweight??

[Evenstar]

She eats great, her previous owner was feeding her 1 mouse a week I feed her 1med to small rat a week. You can see her ribs when she stretches out and she has a lot of loose skin.

Ok, that changes my perception a bit.

First off, I would collect a fecal sample and take that and her to the vet for a workup. If she's consistantly eating every week, she should look better than this.

GTPs actually do better on mice, generally, than rats. One mouse a week is quite appropriate for a healthy animal - in fact, once every 2 weeks is even better. My 10 year old male eats one large mouse every 2 weeks and he is in perfect condition. Once you get your s healthy, I would take this into consideration. My point right now, though, is that with your current feeding practises, she should be gaining weight significantly unless there is something else going on. Hince the needed vet visit.

I would make sure to keep her misted very well right now too. That will help with the dehydration.