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

and how gracefully the fish moves in the water. But the most important trait of all is the koi's coloring. The best koi have a good balance of colors and patterns according to their variety.

Koi carp are one of the most iconic ornamental fish in the world. Originally hailing from Japan, these beautiful fish have amazingly patterned bodies. There are many varieties–– and some of them are ...