Otty is the family fish with all 6 parents having an equal share in his ownership. His full name "Ottery Saint Mary" local to Exeter and therefore apt for the house fish. Otty is a sharp witted little fish that the moves at great speed. Although he is only about 3cm in length he is an important addtion to the tank many an hour has been spent trying to find him.

Otty was the last fish to join the spherical water container, and spends most of his time by himself, and seems happy to do that. He is competitive and manages to feed well as he is a lot more mobile than some (Bert).