Depends, is the water always murky, or is it high from a rain or
something along those lines??? If the fish live in the murky water a
majority of the time, then a spinnerbait with a HUGE Colorado blade in
chart. or white/Chart. or Texas Craw (black/Chart.) would be my choice.
If the fish are not used to it, and you are stuck fishing a murky area
and have no access to clearer water, I would use a really big jig with
the loudest rattle you can find and a big trailer.

There is a lot more to the choice selection, but that would be a start.

Chris