Okay did you dad mention soemthing called faliure to thrive? this is when an animal no matter what you do just will not thrive , it maybe genetic or possibly something went wrong during incubation, but most of the time they will just stop thriving. I would talk to dad about this. I still think vitamin therapy ,keeping him warm and quiet is the route to go now. and how is he doing as far as eating? and does he seem to enjoy having his buddy with him?