Freshwater · Late spring through early fall

Mongolian Culter

Culter mongolicus

The Mongolian redfin is the orange-finned wolf of East Asia's big lakes — a mid-water hunter built for chasing down small fish in open water.

Seasons · Peak

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Mongolian Culter — AI-generated image — AI-generated image — no verified freely-licensed photo of this species was available

Identifying features

Elongated silvery predatory body with a strongly upturned mouth
Pectoral, pelvic and anal fins flushed orange-red
Deeply forked tail with a reddish tint — hence its other English name, Mongolian redfin
Sharp keel running the full length of the belly

Habits

Open-water predator of the Amur, Yangtze and Mongolian lake systems
Hunts small fish in mid-water and near the surface
Spawns in early summer, scattering buoyant eggs in open water
Now usually classified in the genus Chanodichthys (syn. Culter mongolicus)

Distribution

Regional coverage expanding

Where to find them

Open water of big lakes in its native range
River channels and reservoir bays
Around schools of small baitfish

Where they live

Large lakesLowland riversReservoirs

How to catch them

Casting spoons over open water Lake

Rig: Light spinning rod, metal spoons and jigs cast to feeding signs

Bait/lure: Spoons, small jigs, minnow plugs

Key tip: Follow the birds and the baitfish — redfins hunt in packs and compete for the lure.

Live-bait float fishing Lake

Rig: Sliding float, small live fish suspended in mid-water

Bait/lure: Live small fish, live shrimp

Key tip: Set the bait at the depth of the baitfish schools, not on the bottom.

Best baits & lures

Small live fishMetal spoons and jigsSmall minnow plugs

Techniques for Mongolian Culter →

Baseline setup

Rod: Light spinning rod
Line: 6-10 lb mono or braid
Terminal: Spoons, jigs, sliding floats

Recommended gear for this species

Rod · Best value

9' 5-weight fly rod outfit

≈ US$180-260

Covers chironomid lakes and small rivers with one setup.

Flies · Budget

Chironomid assortment (30 patterns)

≈ US$25-40

Chironomids are 60% of a lake rainbow's diet in spring.

Picks come from our rule library — never paid placements. Prices are guides; affiliate links may earn us a commission.

Typical size

Common 1-3 lb; large fish to about 8 lb

On the table

Good — a food fish across northern Asia, with the usual fine culter bones.

Similar species

Topmouth CulterTopmouth culter has plainer, uncoloured fins and an even more strongly upturned mouth; Mongolian culter wears orange-red fins and a red-tinted tail

Regulations vary by area and can change in-season — always check the official rules for your area before you fish. Regulations guide →

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