Golden Carp

Golden Carp are a type of fish which are found extremely rarely 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.

Trivia

 * It has been observed that the Golden Fishing Rod tends to reel in more Golden Carp than other rods, however this isn't proven and could simply be coincidence.