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 ...

One, in particular, stands out for its remarkable longevity: the koi. With proper care, these elegant carp can become lifelong companions, outliving popular pets like cats and dogs. Koi fish are ...

Koi diplomacy is back with Japanese nishikigoi, or ornamental carp, set to return to the lucrative Chinese market after a nearly year-long hiatus. Sources have confirmed that Chinese authorities ...

Episode 3 - Ali and Bobby's tour takes them to northern France this time as they compete to catch the most colourful ornamental koi carp and travel to Le Prunet, a big carp lake in Sens. More info ...

Niigata is a leader in land-based aquaculture for freshwater fish. The prefecture is the origin of ornamental koi carp, or nishikigoi as they are known locally, and remains the leading producer in ...