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 ...

The nation’s top koi aficionados will bring their most spectacular fish — up to 3 feet long — to South San Jose to compete ...

Koi diplomacy is back with Japanese nishikigoi, or ornamental carp, set to return to the lucrative ... resume imports of these vibrantly colored fish, although the reason for the suspension ...

In contrast, many Western koi owners prioritize growing their pet fish faster over offering a natural diet. Japan's cold ...

The Queen star's 89 fish, each more than 2ft long ... To have my wonderful Japanese garden with all this koi carp recently bought at such expense, I love it.' ...

When rice farming activities cease during winter, agricultural workers in the Japanese prefecture ... for freshwater fish. The prefecture is the origin of ornamental koi carp, or nishikigoi ...