Butterfly Koi
A variant of Koi (Cyprinus rubrofuscus)

Photo: Dslcards · CC BY-SA 4.0
A long-finned koi from crosses with Indonesian longfin carp, with flowing fins and barbels. Some keepers do not consider it true nishikigoi.
A variant of Koi (Cyprinus rubrofuscus)

Photo: Dslcards · CC BY-SA 4.0
A long-finned koi from crosses with Indonesian longfin carp, with flowing fins and barbels. Some keepers do not consider it true nishikigoi.