For the Cake at Stake prize in "Don't Lose Your Marbles", see Fish (food).
Fish are a type of creature located in the Goiky Canal. They are simple, plain fish that resemble goldfish. They are possibly carnivores, given the way their teeth are set up. Not much is known about them, except the fact that there are orange and green ones. Before "Lick Your Way to Freedom", this was the only creature based upon a real animal in BFDI that was not a recommended character.
Fish are small fish. They have one large dorsal fin on the back of them.
Fish are not known to speak or if they are even capable of doing so. Appearances without a note in parentheses are non-speaking.