Aerobics fish
Character
The aerobics fish[1] is a character who appears in the episodes "Under the Small Top" and "Pinned."
Description
He is a light yellow fish with orange fins and orange hair. He wears a red and white striped shirt, red shorts, and red and white shoes.
Role in series
"Under the Small Top"
He appears in the fitness show that Squidward watches and tries to follow along with near the beginning of the episode.
"Pinned"
He appears in the fitness show that SpongeBob is watching while he does his workout.