>I noticed he wasn't eating/drinking/pooping. was very very dark brown >(almost black) and like liquid. To Christine. In my experience keeping a great number of ferrets, I always keep some antibiotics on hand. Your description in isolating him for observation is the routine I use, even for a few day's. In this case I would start immediately with 1/4 cc Clavulox syrup (modified Amoxylin) 3x- day for 3 day's and thereafter 2x-day. Most ferrets love the taste of this product and will cause no stress. If after about 3 day's there is no improvement, the situation will have to be reassessed, but if there is some improvement do NOT stop the medication to soon it could mean a relapse later on. All the best from BILL [Posted in FML issue 1333]