“Nishikigoi”: Niigata’s Swimming Treasures | Nippon.com
https://www.nippon.com/en/guide-to-japan/gu900176/
WebApr 23, 2021 · Niigata, the birthplace of the nishikigoi, currently has over 300 breeders, more than any other prefecture. The Niigata Koi Show, the world’s largest such event, marked its sixtieth anniversary...
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