Koi Types
Shiro Matsuba
Shiro Matsuba are a white Koi with a black net pattern.
When buying a Shiro Matsuba,
make sure that the net pattern is equal all over
the Koi. Watch out for any discolored scales or old scars.

Net Pattern
Matsubas have been around almost as long as the Asagis. They are closly
related,
sharing the same net pattern.