My new fish Odin seems to emit an odd smell. It's almost like those canned hot dog bits and beans. I'm a vegetarian so I'm not sure exactly what they're called, but I've smelled it before at cookouts. His water stays clean (I do changes every other day in his .5 g hospital tank), he doesn't appear to have any external problems (although his eye is cloudy, and I am treating that). I noticed it last night, while I was cleaning his tank. Then again he still smells today. I did 100% watch change last night, so I would think it can't be the water.
I've never had a fish that smelled like this. I've had fish smell, well like fish, but never like canned hot dog bits and beans. None of the other tanks smell weird, and I changed them last night too.