Mullet - A Versatile Saltwater Pattern. This medium sized fly would be perfect in situations of which the fish are keying in on the plethora of prey fish. The phrase feeding frenzy comes to mind. However, as a searching pattern, the Mullet will also produce a lot of fish due to the large and obvious profile this fly creates. As always, choose colors to match the bait fish you expect to encounter. Also consider this fly for large trout, bass, and pike.