How does sun hock fish look like?

It seems you're asking about "sun hock" fish, but that's not a standard term in English for any specific fish species.

It's possible that:

* There's a regional or dialectal name: "Sun hock" could be a local name for a fish in a specific region, perhaps in Cantonese or another language. If you can provide more context (like where you heard the name), I might be able to help.

* It's a misspelling: Perhaps you meant "sunfish" or "hock" (which refers to a joint in the leg).

Please provide more information so I can understand what you're asking about.