Golden Carp

Golden Carp are a type of fish which are found extremely rarely (1/1000000)by fishing in any biome in any layer, with the exception of the Desert /  an Ice biome that is Corrupted, Crimsoned, or Hallowed. Their sole use is to be sold for a large amount of coins.

Unlike the golden critters, this fish can not be crafted into the Golden Delight, it is in fact not even considered a Material.