Gin Rin Platinum Ogon - Metallic white koi (also known as Purachina Ogon) with highly reflective silver scales (Gin Rin)
Rin Gin Koi
holy carp! Is that real?
Goldfish - Yellow and white Fantail
Goshiki - Koi with 5 color pattern made up of red, white, black, light blue and dark blue. While most can be messy with all of the colors running together, there are others that are almost unreal in appearance.