What color eyes does a coy fish have?

Coy fish, also known as koi, can have a wide variety of eye colors, but they are most commonly:

* Black

* Gold

* Red

* White

Some koi may have multi-colored eyes, such as black with gold flecks, or red with white irises.

It's worth noting that eye color is not a defining characteristic for koi variety, unlike other features like scales and patterns.