Rockos been having diarrhea for the past 4 days. I took him to the vet and had a fecal test done and he doesnt have any worms or parasites, they gave me flagyl for it but does anyone know what could be causing it? I havent changed anything hes been eating the same stuff. I did find out he has demodex mange, I had a skin scrape done because it looked like he had a few small balding spots on his back but I dont think that would cause diarrhea.