Best Saltwater Fly RodsThe best saltwater fly rods are built tough. This allows them to pick up weighted flies out of the water, fight big tough fish, and power casts through the wind. Most anglers in saltwater are fishing a minimum of a 7 weight rod, which is very light, and could be targeting anything from Bonefish to Marlin. An 8 weight is the most popular weight rod for Bonefish, and anglers will use 9, 10, 11, and 12 weight rods for the larger fish depending on the situation. For large Marlin, Sailfish, and Tuna anglers will look for rods in the 14-16 weight range.