In Hawaii, Koi ponds are often designed into a home’s garden. In Mauna Kea Resort, there is a home currently on the market where the house was designed around a large center garden. The focus of the garden is a beautiful Koi pond. It’s an older house, and the Koi are stout.
Koi fish have been selectively bred using the common brown Asian carp and the German carp species. It is believed selective breeding for color mutations began in China thousands of years ago. It is generally believed Koi were bred for specific colors circa 1800 in Japan.