All 3 of my ferret's are currently on a mix of Wysong Epigen 90 (5lb Forumula) Wellness Core Kitten and Nature's Variety Instinct Rabbit, I mixed all these a few days short of learning about the ingredient change in Wysong and had 16lbs of ferret food mixed, I couldn't just throw it out, so I have been feeding them the mix, and of course they are plagued by diarrhea, a month in and no solid stools, but I don't want to just throw what's left out, maybe about 8lbs, I would say it's maybe about a month left of food, can long bouts of diarrhea hurt their intestinal tracks? If so I am going to go with ordering the reformulated Wysong and the other two, I just don't want to cause my babies any harm all because of the stupid ingredient change, I always make sure to keep them filled with water as I know diarrhea can cause dehydration.