Blenny is Anchor's fish friend for the sharks' "Fish are Friends, Not Food" convention group. When Anchor introduces him at the sharks' meeting, he looks nervous. After he sees a fish's skeleton hanging from Chum's mouth, he escapes the meeting, swimming away as fast as he can.
- Although Blenny is not identified by name on screen, a video game for the Macintosh cites the little green fish's name.
- The name is quite likely a reference to the suborder blennioidei, which is commonly known as "blenny."
- It is unknown what species Blenny is, but he most closely resembles a bubble-eyed goldfish with green scales. However, this is a freshwater species when Blenny is shown to live in the sea.