For kingfish, use a 4- to 6-inch single-strand, pound-test, brown-colored wire leader connected to the main line with a swivel. The current was slow, so we placed a few baits at the surface. This is a good bottom and even middepth bait with a long leader, such as 30 to 40 feet common when rigging for mutton snapper, because the extra-long leader provides enough latitude for the bait to swim. Learn these secrets to fishing success right now. It also pulls out easily for better hook-sets. Hook worms, caterpillars, and grubs by bunching them up.
This is easier said than done with bait fish.
How to Hook Live Bait