kujaku koi

Quick Answer Kujaku (“peacock”) koi were developed in the early 1960s by breeder Toshio Hirasawa of Maruju Koi Farm, crossing Hikari Muji (metallic) koi with Asagi koi. The result is a metallic white or silver base with an Asagi-style net-like (reticulated) pattern, overlaid with red, orange, or gold markings — genuinely resembling peacock plumage, hence