The different types of nishiki-goi, the colored carp!
Carp are said to come from central Asia. Do you know that carp are highly prized in Japan as a special kind of enjoyment? After rare colors of carp were discovered in Niigata prefecture, the interest in colored carp spread out among affluent families. In Japan they successfully became a lucky charm, but now they are called "swimming jewels" that are loved throughout the whole world.