It started out with really runny diarrhea That was very watery and yellow. So then that improved with probiotics and a dose of metro. To a soft yellow poo yellow poo then last night he was off his Formula so I hydrated with homemade hydration . He was picking at Rolling block and then I noticed the poolwas grey And he wasn't moving right so I hydrated with some calcium in there and he was moving a little better the pool was back to a soft but formed light yellow. I just hydrated again I'm gonna wait and try to feed him some formula. Everyone else is acting good active playing running around the cage but hes hunkering down in his cube by himself I'm very worried and I'm not sure what to do for him