My blennie was sitting up today, and I saw a round area at his chest(pretty fat), and the rest of his body looked like his tail.Was that his stomach? I hope so.
Most likely it's only his stomache. Unless you've had a recent outbreak of Ich and have lost other fish, you probably don't need to worry at all.
Mine (Benny the Blenny) is so fat he can't sit up at all anymore. I should probably call Jenny Craig or something.
