Thank you guys for your well wishes and wonderful advise. Unfortunately he passed away just a little bit ago. I think the poor thing was just too far gone. I really wishe that petstores would practice good husbandry, these things wouldn't happen so often. Its bad enough he had mouth rot, but malnourished and the dehydration on top of it?
I guess they don't realize that antibiotics are useless if you aren't going to feed and take proper care of the animals you are treating.