
There was a well-known red coloured koi called "Hanako" who lived to be 228 years old (1749-1977). Needless to say, he was owned by several owners through the course of his lifetime.
Koi 6
To the Japanese the koi fish is a symbol of luck, prosperity, and good fortune. They are also associated with Japan's national identity and culture.

Trying to keep all of the varieties and variations of koi straight can be hard enough, especially since new koi varieties are still being actively developed.
Koi 7
I fell in love with the Butterfly koi (also known as dragon carp, or longfin koi) when I first saw them in Aruba at The Butterfly Farm, but unfortunately with all the predators I have around here there is no way I can have a koi pond on the farm.