I an no vet - far from it, but lets look at the food. Have any of you purchased food recently, did you feed new food? I had a collection of fish - one was a gold fish 4 inches long. He came to the side of tank when I walked into the kitchen. He was my favorite. I went to the pet store and purchase more of the same food I was using - came home - fed the fish - the next day one was dead, in two days all were dead. I called the company and they said - they were sorry. I read the label, the food had been imported from another country and then I read in the paper where dogs, cats, other animals had died from eating their food. I'm trying hard not to mention names just the idea. This is just what I read, observed, and lost. If the ferrets were okay, ate, blew up, went down and died, with no trace of virus, could it be something they ate? Just my thoughts - standing by with buckets of water waiting to be flamed. Marilyn [Posted in FML 6193]