01Basic structure of down-shot rig

The down-shot rig fixes the sinker to the bottom and uses a leader to suspend the worm at a set height. This structure allows you to target both the bottom‑dwelling prey (octopus) and fish passing 20–40 cm above it.

Sinkers are typically 25–40 ho (112–150 g). The key is to increase weight as current strengthens to keep the sinker firmly anchored on the bottom.

The leader is attached to the sinker at a point 40–50 cm above it with a triangular spreader. In fast‑flow areas shorten the leader (30 cm) so the worm stays near the bottom longer; in weak flow extend it (50 cm) for a more natural motion.

Sinker weight
112–150 g (25–40 ho)
Leader length
30~50 cm
Hook size
3/0~4/0 straight hook

02Choosing a worm that attracts octopus

Octopus mainly lives on the bottom and reacts to moving small objects. A 4‑inch minnow or shad‑tail worm works best.

Color depends on water temperature and light. In cold water, chartreuse worms increase visual contrast and trigger bites. When water is above 15 °C, white or red worms are more effective.

Set the worm’s motion to a light shake. When the worm on the leader moves slowly up and down at 20–40 cm height, the octopus mistakes it for prey and strikes.

⚠ Common Mistakes
  1. Sinker is too light→ It drifts with the current and leaves the target depth
  2. Leader is set too long → the worm touches the bottom and its movement stops
  3. Choosing only bright colors → low response in cold water

03Rig adjustments and field application

Before the trip, assess the current and depth. If the current is ≤ 1 kt, use 25–30 ho sinkers; for 1–2 kt, use 35–40 ho to secure bottom contact.

If depth is 10–30 m, set leader to 30 cm; 30–80 m, 40 cm; over 80 m, 50 cm. This ensures the worm covers the target depth layer (20–40 cm above the bottom).

Fishing spots are best on sandy‑pearl bottoms with many rocks or in areas tangled with seaweed. Octopus hides among these structures while hunting for food.

Coastal sand flat
Pearl‑sand mix
10–30m
Previous day
Seaweed zone
Floating vegetation
30–80m
Mid‑tide
Rocky zone
Stone‑crevice
80–150m
Around tide change

04Harmony of eging (motor) rig and down‑shot

Eging uses a motor reel to move the worm quickly. Combined with a down‑shot rig, the bottom‑fixed worm darts up and down instantly, stimulating octopus aggression.

Motor reel speed of 2–4 Hz (2–4 cycles per second) is optimal. Too fast makes the worm bounce off the bottom; too slow reduces octopus response.

When eging, keep the leader under 30 cm and increase sinker weight to 35–40 ho to strengthen bottom hold. This concentrates motor motion near the bottom, boosting efficiency.

⏱ Golden time
Sunset ± 2 h
Weaker current and darker water increase bite activity
Early morning 4~6 a.m.
Stable temperature and higher prey activity
During tide transition
Changing water level prompts octopus to search for food and move actively