Chomper is Rainbow Fish's Shark friend. Like Stingo he used to be one of the school of fishes bullies but now is a more friendly shark. He and Stingo always know about everything that Rainbow does. He and Stingo also both love playing hide and seek with the other fish. Also he always tries to keep Stingo from playing clam blaster since he gotten clam blaster fever the last time he played the game. Chomper is one of the most craziest fish in Neptune bay.