https://koistory.com/blog/the-koi-lifespan-and-why-japanese-koi-live-longer

Jun 15, 2017 ... The average koi breed outside of Japan can be expected to reach fifteen years of age, but the average Japanese koi's lifespan is forty years.

https://en.wikipedia.org/wiki/Koi

Koi or more specifically jinli or nishikigoi are colored varieties of Amur carp ( Cyprinus ... It is also common for hobbyists who are passionate about their koi to join a club specifically for their koi and ponds. ... In both languages, the former can refer to many Asian carp species included (and most commonly refers to) the some ...

http://www.oldest.org/animals/koi-fish/

Reportedly, koi fish can live for much longer in the optimal conditions and there are supposedly many koi who live over 100 years. For the most part these are ...

https://pondinformer.com/how-long-do-koi-carp-live/

May 27, 2018 ... With very good care and genetics (bloodlines), koi can live to well over 100 years of age – even outliving their owners! With extremely poor care ...

https://sunlandwatergardens.com/pond-resources/koi/long-koi-live/

Jan 22, 2014 ... The oldest known Koi was Hanako who lived to be 226 years. But the reality is most Koi do not live anywhere close to that long. I actually got to ...

https://www.quora.com/How-long-do-Koi-fish-live-on-average

Because most of us who do keep them, these animals many times out live us and while it ... What is the best environment for Koi fish to live?

https://www.fishlaboratory.com/fish/koi-hanako-longest-living-fish-ever

Aug 1, 2014 ... At 226 years old, koi Hanako was the longest living freshwater fish ever recorded. Koi Hanako was a beautiful scarlet coloured female ...

https://www.koiacres.com/koi/faq.html

How long can Koi live? Koi usually live around 20 or 30 years. The oldest Koi on record was named Hanako. It purportedly lived to be about 226 years old.

http://www.vetstreet.com/our-pet-experts/8-things-we-bet-you-didnt-know-about-koi

Jun 3, 2016 ... Koi usually like company and can be kept with other koi and ... Some koi may turn white as they age. 6. ... Most koi can live for at least 20 years.

https://fullserviceaquatics.com/fish-food/old-koi-need-spawn/

Apr 19, 2017 ... Most koi will probably be about 1 year old by the time they even make it ... It can be difficult to know the true age of a fish, and it definitely cannot ...