It is known that the first nishiki-goi breeders were farmers, residents of a village in Niigata, at the beginning of 1800. They noticed that some carps bred in the irrigation ponds were having spots of white, orange and red color. They separated them, and after many generations, they obtain the vivid colored koi we know today...
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 24mm
Aperture: F/7.1
Shutter Speed: 1/640s
ISO Sensitivity: ISO 400