Yeah, I know, but he seems happy as a clam. Very active, always eating and doesn't swim and hide when you approach the tank or when other fish are near. In fact, he sometimes hangs out with the corys!! Maybe he thinks he's one! I'm nearly at the limit, but may take on another.0morrokh said:If you have room in your tank, get some more Otos. They aren't as happy on their own. They like friends, like Cories do.