The poop in the pictures looks too white to me, which in my experience means they are dehydrated.
Giving fluids subcutaneously can be risky, but if you go slow I think you can do it. I think the key is to give them with the needle facing the tail close to the spine between the wings. I'll see...
Total water per day should be no less than 5% or her body weight (180 ml).
If she were mine I would try to tube 120 ml of Kaytee/water twice a day, and I might also give 200 ml of fluids subcutaneously every 1-2 days.
What does her poop look like?