Fishing kelp banks for cod at night is one of my favourite challenges — the tide smells different, the headlamp cuts through the darkness and every bite feels earned. Deadbait is my go-to when the water cools and cod move onto the weed to feed. Over the years I’ve refined a simple, robust presentation that maximises hookups while minimising snags on those messy kelp edges. Below I share the step-by-step method I use, from bead sizes and hook selection to anchoring tactics that keep your rig in place without burying it in the weed.

Why deadbait on kelp banks at night works

Cod feed actively among kelp, especially after dark when more of their prey are easier to catch or are hiding in the fronds. A well-presented deadbait sits near the weed line and gives off scent and profile that cod can home in on. The trick is keeping the bait presented naturally above or just in the weed, and avoiding setups that tangle or snag every other cast.

My standard rig and tackle choices

I use a straightforward ledger setup that’s tough but sensitive. Here’s what’s typically in my bag:

  • Rod: 12–13ft surf rod with a 3–6oz casting weight — I favour a slightly heavier tip for kelp banks to get distance without sacrificing feeling.
  • Reel: 5000–8000 size longcast reel spooled with 15–25lb braid (Daiwa or Shimano braid is what I usually trust).
  • Shock leader: 30–50lb mono, short — about 1–1.5m tied to the braid with a loop or Albright knot.
  • Hooklink: 60–80lb fluorocarbon for abrasion resistance around kelp.
  • Hooks: See section below — I carry a range from size 2/0 to 6/0 depending on bait and target size.
  • Beads and anti-tangle sleeves: I use glass beads or plastic beads sized to match the hook link and attract insects to the bait movement.

    • I like to keep things with a practical edge — brands I trust include Owner for hooks, Gardner for beads and split rings, and Fox for anti-tangle sleeves.

    Choosing bead sizes and why they matter

    Beads aren’t just cosmetic; they act as a spacer, a shock absorber and can add subtle movement to the bait. Size and material affect how the bead sits on the rig and how much noise it makes if it hits the weight. On kelp banks I prefer beads that are large enough to be visible on the rig but small enough to pass through weed without snagging.

    Bead size (typical) Material Best for bait Why I use it
    4mm Glass / Plastic Small strips, lugworm pieces Low profile, minimal snagging, subtle spacer
    6mm Glass Whole sandeel sections, medium strips Good balance between visibility and slim profile
    8mm Glass Large sandeel, whole whiting, herring strips Creates more movement and spacer action for bulkier baits
    10mm+ Glass Large whole baits, big chunks of mackerel Spacing and visual bulk — beware snag risk on heavy kelp

    My typical go-to on most kelp bank sessions is a 6mm glass bead placed between the hook swivel and a short length of anti-tangle sleeve. It’s big enough to hold a small hooklink knot and small enough to slip through weed when the tide moves.

    Hook choices — what I use and why

    On weed I need strong, sharp hooks that resist bending and have enough gape to take a large chunk of bait. My favourites include:

  • Mustad Beast Master 4/0–6/0 for large mackerel or whole sandeel baits — tough and reliable.
  • Owner SSW 2/0–3/0 when I’m using smaller strips or fishing lighter but still expecting a pig cod.
  • Gamakatsu Octopus 1/0–2/0 for subtle presentations and when I want better penetration on slower bites.

    • Hook length and style matter too. I prefer slightly stouter, short-shank hooks on kelp to reduce leverage and avoid the hook being bent by a big cod’s headshake. Wide-gape patterns give a better chance of hooking deeper, particularly with chunk baits. I always carry spares and a hook puller — there are nights when I reshuffle rigs between tides.

    Step-by-step rig build for night cod on kelp banks

    Here’s the rig I tie most nights. It’s designed to keep the bait presented just above the weed and reduce tangles.

  • Tie your main braid to a 1–1.5m shock leader with an Albright or FG knot.
  • At the end of the shock leader, attach a swivel (size 4–6 depending on leader strength).
  • From the swivel use a short sleeve of anti-tangle tubing (about 8–10cm) — this helps the hooklink ride behind the weight.
  • Slide on your chosen bead (6mm is my standard) onto the hooklink above the knot that will attach to the hook.
  • Tie a 45–70cm hooklink of 60–80lb fluorocarbon to a strong construction swivel — I use a knotless knot with a slightly bent-end needle for good bait retention.
  • Attach your chosen hook (2/0–5/0) to the end of the hooklink and secure bait — strip hooks long enough to expose sharp metal but not so long they get pulled in to the weight.
  • Use a running or fixed ledger setup depending on how snaggy the bank is: I prefer a running ledger with a quick-change link swivel and 3–4oz to 6oz grab sinker for variable conditions.

    • The anti-tangle sleeve is vital here. It forces the hooklink to lay back along the line and keeps the hook from flipping around and burying itself in kelp.

    Anchor tactics to avoid snags on kelp

    Getting your sinker snagged in kelp is frustrating and costly. I've developed a few tactics that lessen that risk:

  • Choose your weight carefully. Heavier is not always better. Too heavy and it will plough into weed beds. Start with 3–4oz and increase only if you’re losing distance or being drifted off your mark.
  • Use streamlined weights — lead-free torpedo-shaped or pear weights resist catching in weed compared to bulky leads.
  • Consider a running ledger with a breakaway clip or a mystery hook system for extreme snag zones. I sometimes use a quick-release trace loop so if the weight gets stuck, the rest of the rig and bait can be retrieved.
  • Watch the tide and fish the edges, not the middle of the kelp. Cod sit on the transition zones; casting slightly beyond the weed and allowing the bait to settle and drift back is often more productive than forcing the rig into dense weed.
  • When reeling back, keep the rod tip up and apply steady, moderate pressure. Jerky movement tends to dig the weight deeper into fronds.

    • Baiting tips and presentation nuances

    Bait choice changes with season, but I aim for a clean, well-presented chunk or whole bait that keeps its profile in the current. For example:

  • Whole sandeel threaded on the hook for natural presentation and minimal drag through weed.
  • Large mackerel chunks for scent and profile — secure with a bait spike or stitch to prevent slippage.
  • Herring or whiting strips for a slimmer presentation under the surface.

    • When casting in the dark, I check my bait under a headtorch before each cast — light makes it easier to detect damage and ensures your hook point remains exposed. I also vary the length of the hooklink to sit the bait either right in the fronds or slightly above them; small adjustments of 10–20cm can make the difference between a locked weed and a hookup.

    If you want, I can share printable rig diagrams or a short gear list for a night session. I often post photo-backed rig guides on the site and social channels, and I’m happy to walk through something specific for your local mark.