And just like prized dog breeds, Japanese people take koi breeding ... with light blue spots, ones with large red patches on their backs, or all-metallic gold. But the most winning fish often ...

Koi fish are what you might call a happy accident. In the 1600s, Japanese carp farmers began ... black, white and blue. "There are more than 100 varieties in koi, but they are all the same species ...

Do you have backyard koi ponds on your water features Pinterest board? These insider insights will help you decide if one is ...