There are 212 native species to Korea. In addition, the fish you saw could
easily have been imported.
http://www.lib.noaa.gov/korea/index.htm

wrote in message
...
Long long ago, I saw a 'fluffy' finned fish in a shallow stream at a
Korean
tourist village. I don't know if the fish was 'installed' in the stream,
but
to some degree, the stream was artificial. I think there were metallic
colors on the fins, else the fish wouldn't have visually struck me. It was
about 4 or 5" long.

Anyone have guesses or clues to its species?