Fluffy was a fish who formerly lived in the Lobbyquarium.
Fluffy, like The Kahuna, is a laid back kind of fish. He seemed good natured. He also has something on his lower jaw that resembles the Kahuna's beard.
In "Penthouse of Horror", when Kelly and the Chef ran out of food in the Pirate Ship's kitchen, she fished Fluffy from the Lobbyquarium and had him cooked into a fishstick by Chef for Mr. Marvin. He was later resurrected by the Kahuna by accident with a spellbook, then went on to attack Kelly, Chef and Johnny in fishstick form before the Kahuna stopped him from attacking Emma by throwing shrimp forks at him. When Fluffy next tried to attack the Kahuna, Kahuna ate him up and finished him off for good.