Editing Koi (section)

=== Today ===
The hobby of keeping koi eventually spread worldwide. They are sold in many pet aquarium shops, with higher-quality fish available from specialist dealers.<ref>{{Cite web |url=http://www.mpks.org/articles/RayJordan/KoiHistory3.shtml |title=MPKS Ray Jordan Koi History |publisher=Ray Jordan |access-date=26 April 2009 |url-status=dead |archive-url=https://web.archive.org/web/20090723111340/http://www.mpks.org/articles/RayJordan/KoiHistory3.shtml |archive-date=23 July 2009 }}</ref><ref>{{Cite web |url=http://www.netpets.org/fish/reference/freshref/nishi.html |title=Early Records |publisher=Netpets.org |access-date=11 April 2009 |archive-date=13 June 2010 |archive-url=https://web.archive.org/web/20100613053139/http://netpets.org/fish/reference/freshref/nishi.html |url-status=live }}</ref> Collecting koi has become a social hobby. Passionate hobbyists join clubs, share their knowledge and help each other with their koi.<ref>{{Cite book |url=https://books.google.com/books?id=JfgI8wUC5JQC&q=koi+fish+information |title=The Ultimate Koi |last=Fletcher |first=Nick |date=1 January 1999 |publisher=Interpet |isbn=978-1-86054-146-9 |language=en |access-date=18 October 2020 |archive-date=16 May 2024 |archive-url=https://web.archive.org/web/20240516033009/https://books.google.com/books?id=JfgI8wUC5JQC&q=koi+fish+information#v=snippet&q=koi%20fish%20information&f=false |url-status=live }}</ref> In particular, since the 21st century, some wealthy Chinese have imported large quantities of koi from Niigata in Japan, and the price of high-quality carp has soared. In 2018, one carp was bought by a Chinese collector for about $2 million, the highest price ever. There are also cases in which purchased carp are bred in China and sold to foreign countries, and many breeds are spreading all over the world.<ref name = "gendai1"/><ref name = "gendai3"/>