How to Tie a Knocker Rig for Florida Bottom Fishing

Part of Knots & Rigs · All fishing tutorials

The knocker rig is the simplest bottom rig in Florida: an egg sinker threaded on a short leader, sliding free so it knocks right down against the hook. There is no swivel between the weight and the bait, nothing to catch on a piling, and the bait lands exactly where the weight lands — right in the rocks, roots, and shadow lines where bottom fish actually live.

Dock and bridge anglers, mangrove shoreline fishermen, and nearshore bottom fishermen all lean on the knocker because it casts accurately, snags less than a fixed-weight rig, and gives a fish very little slack line to wrap around structure. If you fish tight to cover for snapper and sheepshead, this is the rig to learn.

Jump to: What You Need · Building the Rig · Where the Knocker Wins · Fishing It Tight to Structure · Keep Learning

What You Need

• One barrel swivel
• 12 to 24 inches of fluorocarbon leader, 20- to 40-pound test for inshore work
• Egg sinkers from 1/4 ounce in calm dock water up to 2 or 3 ounces in bridge current
• Circle hooks or live-bait hooks in 1/0 to 3/0
• Bait: live or fresh shrimp, fiddler crabs, sand fleas, or small cut bait

Leader length is the tuning knob on this rig. Twelve inches keeps the bait pinned almost on top of the sinker for fishing straight down beside a piling; two feet lets the bait wash around a little more in current. Start at about 18 inches and adjust to the spot.

Building the Rig, Step by Step

1. Tie your main line to one end of the barrel swivel with a Palomar or uni knot. The swivel lives at the top of the rig on a knocker — it is the stop the sinker can never slide past.
2. Tie 12 to 24 inches of fluorocarbon leader to the other end of the swivel.
3. Thread an egg sinker onto the leader, wide end first. It should slide freely from the swivel all the way down to the hook. If it binds on the knot, your leader is too soft or the sinker’s hole is rough — swap one or the other.
4. Tie your hook to the end of the leader with a snell or loop knot. The sinker can now knock right down and rest against the hook and bait, which is exactly what gives the rig its name.
5. Pick sinker weight by conditions: just enough to reach bottom and hold in the spot you are fishing, and no more. Too much weight kills the bait’s natural look and wedges the rig into the rocks.

Where the Knocker Wins

Think of the knocker as the opposite end of the bottom-rig family from the Carolina rig. The Carolina puts its egg sinker on the main line, ahead of a longer leader, so a bait can drift and swim well behind the weight on open flats and channel edges. The knocker puts the sinker on the leader itself, so weight and bait arrive as one compact package. Around dock pilings, bridge fenders, mangrove roots, and rock piles, that compactness is everything: the rig drops vertically instead of sailing, the bait sits in the shade line where the fish are feeding, and when a fish runs, it runs out of the structure instead of around a long leader.

It is also the rig for short-range accuracy. Flipping a shrimp to a single mangrove root or dropping a fiddler crab down a specific piling asks for a rig with no loose ends, and the knocker has none.

Fishing It Tight to Structure

Cast or drop the rig so the sinker lands within a foot or two of the structure, let it sink on a semi-slack line, then reel only until you feel the weight. Fish it almost still. A mangrove snapper or sheepshead usually announces itself with a sharp tap or a slow, heavy pull as it tries to carry the bait back into its hole — with the sinker already at the hook, there is very little free line, so lift the rod firmly and reel at the same time to turn the fish’s head before it reaches the roots or barnacles. Most fish are lost in the first three seconds, and they are lost to hesitation, not tackle.

Shrimp on a knocker is the standard mangrove snapper presentation around docks statewide, and a fiddler crab fished the same way is deadly on sheepshead hugging bridge pilings in winter. Carry a range of egg sinkers — the jump from a calm morning dock to a ripping afternoon bridge tide is often the jump from a quarter ounce to three.

Keep Learning

Before you keep a dock snapper or a winter sheepshead, run it through the free Keeper Checker for the current size and bag limits, and keep the full picture in our guide to mangrove snapper fishing in Florida. When the fish are holding on open bottom instead of structure, graduate to the longer-leader Carolina rig — the two rigs share most of their parts and cover almost every bottom situation in the state between them.