"The popular koi fish of today are actually ornamental varietals of domesticated carp," Hilstrom says ... ones can live comfortably in large indoor aquariums, but will eventually need to be ...

Koi are actually a type of carp, and today they're some of the most expensive pet fish in the world. But why? Koi were originally raised in Japan in the 1700s when rice farmers first began ...

Since then, Koi-no-Takinobori, the image of a carp ascending a waterfall, has been entrenched in Japanese culture. The fish become a symbol of strength, courage, and success.

Koi herpesvirus (KHV ... Warwickshire and Essex and has killed fish at all sites, the Fish Health Inspectorate said. It affects all varieties of common and ornamental carp and can result in ...