target.species
Salmon (Coho / King)
Oncorhynchus kisutch
Anadromous, seasonal, and fought in current. Half the battle is the river pushing on a 20 lb fish that is already annoyed.
Tolerances
Every field the compatibility engine reads for this species, with what the number actually controls. Change any component outside these windows in the studio and it raises a diagnostic against the value on this page.
| Field | Value | What it controls |
|---|---|---|
| weightLb | 6 – 30 lb | Typical caught weight, not the record. Sets how much the hook, knot, and drag actually have to hold on a normal day. |
| lineLb | 15 – 40 lb | Sane mainline test window. Under the low number you get broken off; over the high number you are paying in diameter, casting distance, and bites. |
| hookSize | 2/0 – 7/0 | Printed hook-size window on the unified scale. Matched to mouth and bait size; an oversized hook is the most common reason a fish never gets pinned. |
| leaderLb | 20 – 40 lb | Leader test window. Usually at or above mainline test, because the leader is the part that meets teeth, rock, and gill plates. |
| lineShy | 0.60 | How much a visible line costs you in bites, 0 to 1. Above roughly 0.6, a low-visibility fluorocarbon leader stops being optional in clear water. |
| abrasion | 0.60 | Teeth and habitat wear, 0 to 1. Above roughly 0.85 you are into wire-leader territory; in the middle you go heavier fluoro and check your last three feet after every fish. |
| minDragLb | 10 lb | The drag floor. A reel that cannot apply this much without stalling will get spooled or will pop the knot on the surge; the builder flags any reel under it. |
| depthBias | 0.60 | 0 is surface, 1 is hard bottom. Drives how much weight you need and whether a float, a bottom rig, or a topwater is the honest presentation. |
| structure | open, rock | Where the fish holds. Structure is what actually cuts you off, so it drives leader material as much as the fish itself does. |
| water | salt, fresh, brackish | Freshwater capable, so salt rating is a preference rather than a requirement. |
Hook size for Salmon (Coho / King)
2/0 to 7/0, with wire rated to at least 36 lb. Those are the two numbers the studio checks a hook against for this fish.
- hook-small · hook-large
- Below 2/0 the gap is too narrow to clear the jaw and the fish comes off. Above 7/0 it will not fit the mouth and drags a small bait down. Either raises a warning with a fix to the nearest edge.
- hook-wire-light
- A hook rated under 36 lb (1.2× a 30 lb top weight) gets flagged: once the fish turns, leverage at the point exceeds its weight.
catalogClears both checks: Eagle Claw Lazer Sharp Circle Sea 2/0 to 7/0, Mustad O'Shaughnessy Siwash 2/0 to 7/0, Mustad Demon Perfect Circle 2/0 to 7/0, Gamakatsu Superline EWG Worm Hook 2/0 to 6/0. In range but flagged: Octopus Hook (rated 30 lb, under the 36 lb wire floor); Mosquito Light Hook (rated 14 lb, under the 36 lb wire floor).
Salmon (Coho / King) against all the other species on the hook size chart →How hook sizes work →
Line for Salmon (Coho / King)
15–40 lb mainline, 20–40 lb leader. Pound test is breaking strain, not thickness. 40 lb Daiwa braid measures 0.28 mm; 15 lb Berkley mono measures 0.38 mm.
- line-light-species · line-heavy-species
- Under 15 lb every snag and headshake becomes a coin flip. Over 60 lb (1.5× the top) you are paying in casting distance and visibility for strength this fish never tests.
- no-leader-abrasion
- A leader is expected: Salmon (Coho / King) rates 0.60 for abrasion (teeth, gill plates or structure) and no leader warns from 0.6. Run 20–40 lb.
- drag-floor · reel-capacity
- At least 10 lb of drag and 300 yards of line at your line's real diameter, for a fish to 30 lb.
our rigs15 lb fluorocarbon (Berkley) to 20 lb fluorocarbon on River Run, Big River Channel.
Salmon (Coho / King) against all the other species on the line chart →Braid to mono diameter chart →
Rigs for Salmon (Coho / King)
The named rigs anglers tie for Salmon (Coho / King), each built by our solver under that rig's rules and graded by the engine. Sizes are for the water where the rig scored best. Every rig is compared on the fishing rigs page.
Field notes
The parts that do not fit in a table. These are the judgement calls that decide whether the numbers above turn into fish.
Current adds effective load: a 15 lb fish in heavy flow pulls like a 30 lb fish in a lake. Size the drag for the river, not the fish.
Barbless single hooks are required in many salmon fisheries. Check regs before you buy trebles.
Recommended components
Nothing below is hand-picked. Each stage is scored by matching the item's own published spec against this species' tolerances: hook size overlap, line tests inside the window, drag headroom, rod line rating. Anything that fails a hard check is dropped rather than softened.
Eagle Claw Lazer Sharp Circle Sea
The cheapest way to fish circle hooks correctly. Corner-of-the-mouth hookups, minimal gut-hooking, and priced so you re-tie without flinching.
tradeoff Point quality varies pack to pack and the finish is not fully offshore-grade. Fine inshore and in freshwater; check each one.
fitSizes #2–9/0 cover 2/0 to 7/0 of the window. Rated 70 lb before the wire opens, 1.10× standard gauge.
Mustad Demon Perfect Circle
A true circle: the point turns fully perpendicular to the shank, so it slides to the jaw hinge and sets itself when the fish turns.
tradeoff You must not swing. Reel down steadily and let it load. Every fish you miss on a circle hook, you missed by setting the hook.
Verified destination: Demon 39944 inline · 1/0 · 8 pack (2026-10-20). Other sizes or packs are not verified by this link.
fitSizes #1–10/0 cover 2/0 to 7/0 of the window. Rated 90 lb before the wire opens, 1.20× standard gauge.
PowerPro Spectra Braided Line
The braid most people mean when they say braid. Round, tough, and thin: 30 lb PowerPro is roughly the diameter of 8 lb mono.
tradeoff Zero stretch means zero forgiveness: every head-shake goes straight to the hook hole. And it is highly visible, so clear water wants a leader.
fitSpooled in 15, 20, 30, 40 lb inside the 15–40 lb window. braid, 0.28 mm at 30 lb, visibility 0.75.
Sufix 832 Advanced Superline
Eight carriers including a GORE fibre, which makes it noticeably quieter through the guides and more abrasion-resistant than standard braid.
tradeoff A few dollars more per spool and the colour fades faster. The abrasion gain is real but it is still braid; it is not a leader.
Verified destination: 30 lb / 300 yd / Low-Vis Green (2026-10-20). Other sizes or packs are not verified by this link.
fitSpooled in 15, 20, 30, 40 lb inside the 15–40 lb window. braid, 0.28 mm at 30 lb, visibility 0.70.
Seaguar Blue Label Fluorocarbon Leader
The benchmark fluoro leader. Refractive index close to water, so it effectively disappears, and it takes abrasion far better than mono at the same test.
tradeoff Expensive per yard and stiff at heavy tests: 60 lb Blue Label does not want to knot easily. Warm it in your hands and wet every knot.
Verified destination: 30 lb / 25 yd / Clear (2026-10-20). Other sizes or packs are not verified by this link.
fitfluoro in 20, 25, 30, 40 lb across the 20–40 lb leader window. Abrasion 0.85, visibility 0.08.
Yo-Zuri HD Carbon Fluorocarbon Leader
Noticeably cheaper fluoro that still hides well and knots more easily than the premium stuff because it runs a touch softer.
tradeoff Slightly thicker per test and a little less abrasion-resistant. On oyster bar and barnacle structure, spend up.
Verified destination: 80 lb / 30 yd HD Carbon (2026-10-20). Other sizes or packs are not verified by this link.
fitfluoro in 20, 30, 40 lb across the 20–40 lb leader window. Abrasion 0.75, visibility 0.12.
Shimano Stradic FM Spinning Reel
Where "nice reel" starts. Cold-forged gearing, a genuinely sealed body, and a drag that stays linear from the first inch to the hundredth yard.
tradeoff Three times a President for maybe 30% more reel. The difference shows up on day two hundred, not day one.
Verified destination: Stradic FM 4000 (2026-10-21). Other sizes or packs are not verified by this link.
fit24 lb max drag against a 10 lb floor, holds 250 yd of 30 lb braid. spinning, size 4000, salt-rated.
Penn Battle IV Spinning Reel
A full-metal, sealed-drag saltwater workhorse. Heavier than a freshwater reel because it is built to be dunked, sanded, and used again tomorrow.
tradeoff Weight. A 5000 Battle on a light rod is genuinely tiring: you are carrying corrosion resistance in your wrist all day.
Verified destination: Battle IV / size 5000 (2026-10-20). Other sizes or packs are not verified by this link.
fit25 lb max drag against a 10 lb floor, holds 200 yd of 15 lb mono. spinning, size 5000, salt-rated.
Penn Prevail III Surf Rod
Ten feet of graphite composite built to throw four ounces of lead and bait over the breakers and then stand in a sand spike all night.
tradeoff You cannot fish this from a kayak, a small boat, or a tree-lined creek. It is a beach rod and nothing else.
Verified destination: Prevail III 10' Medium-heavy 2 pc (2026-10-21). Other sizes or packs are not verified by this link.
fitRated 15–40 lb, overlapping this fish at 15–40 lb. 10 ft, MH power, moderate action, 1–4 oz.
Dobyns Fury Heavy Casting Rod
A flipping stick. Enough backbone to drive a heavy hook through a plastic and a fish’s jaw, then drag both out of matted grass.
tradeoff Brutally stiff. On light line it snaps you off on the hookset, and it makes a 2 lb bass feel like a wet sock.
Verified destination: Fury FR 765 Flip 7'6" Heavy (2026-10-21). Other sizes or packs are not verified by this link.
fitRated 15–30 lb, overlapping this fish at 15–30 lb. 7.6 ft, H power, fast action, 0.375–1.5 oz.
Salmon (Coho / King) rigs by water
A complete rig for each place Salmon (Coho / King) is actually targeted, built by our solver from the catalog and checked by the same engine as the studio. Each page shows every check with the numbers.
Where you will find them
Venues that match this species' water type. Each one loads the studio with the pairing already set, so depth, current, and corrosion rules are applied before you pick a single part.
Farm Pond
Still, shallow, weedy, and forgiving. No current means the lightest weight that casts is the right weight.
Weedy Lake
Vegetation everywhere. Weedless rigging and enough backbone to pull a fish up out of the salad.
Clear Reservoir
Deep and gin-clear. Visibility is the enemy: this is where fluorocarbon leaders stop being optional.
Mountain Creek
Cold, tight, and fast. Short casts, tiny hooks, and slick rock that will absolutely put you on your back.
River Run
Real current. Weight is now a bottom-contact problem, and drift control beats casting distance every time.
Big River Channel
Heavy flow, low visibility, big fish. Two to four ounces just to stay where you put it, and scent over sight.
Hardwater / Ice
A vertical fishery through a hole. No casting, no current, and a temperature band that makes apparel a survival decision.
Open Surf Beach
Breaking waves and sweeping longshore current. Pyramid weights, long rods, and everything corroding as you stand there.
Inshore Flat
Skinny, clear, and spooky. Long leaders, quiet entries, and the lightest weight that still gets down.
Mangrove Estuary
Tidal, snaggy, and full of structure that eats leaders. Fish get pulled away from cover or they win.
Jetty & Pier
Barnacle-covered rock in moving water. The single most abrasive environment in this list; assume the structure is trying to cut you off.
Nearshore Reef
Structure under real depth. Getting down fast matters, and everything you hook immediately runs for a hole.
Offshore Bluewater
Miles out, deep, and unforgiving. The vessel is now the most safety-critical item in the entire build.
Venue profiles, with what each water does to a rig: Farm Pond, Weedy Lake, Clear Reservoir, Mountain Creek, River Run, Big River Channel, Hardwater / Ice, Open Surf Beach, Inshore Flat, Mangrove Estuary, Jetty & Pier, Nearshore Reef, Offshore Bluewater.
Load Salmon (Coho / King) as the target and the builder re-runs every check on this page live: hook window, line test, leader material, drag floor, as you swap parts.
Open the Rig Studio