What's a common nickname for people named Jared? Red.
Mr. Fish's comical ambivalence/hostility toward Jared takes on new meaning when you consider that Jared doesn't know how to use Pokeballs. He never actually captured Mr. Fish. Mr. Fish is still a wild Pokemon.
Volt mentions that he was born with Nomura syndrome but doesn't look like he was infected. Volt was designed by Nomura himself and people seem to forget that he's capable of designing non-bishounen characters; for bonus points, Volt goes on to mention Xaldin, Cid, and a few other non-bishie Nomura characters.