Here is a great short article on that famous 226 year old koi named Hanako.
A Japanese fish called Hanako is believed to be the longest living Koi fish ever recorded, having made it to the grand old age of 226 before her death in 1977.
The scarlet-coloured female was born in 1751 in the middle of the Tokugawa era in Japan.
While the average lifespan of a scarlet koi carp is around 40 years, Hanako managed to live well into the 1970s, and was aged 226 when she died.
Her amazing story was first shared when her last owner Dr Komei Koshihara made a national broadcast in 1966 on Nippon Hoso Kyokai radio station.