Ice Fishing Line Test by Target Species

Ice fishing line is more visible to fish than open-water line because the water is clear, the light penetrates well, and fish are usually less aggressive. Most experienced anglers fish lighter line in winter than they would in summer for the same species, accepting more break-offs to get more bites.

Recommendations by species:

Panfish (bluegill, crappie, perch):

• Mainline: 1-3 lb monofilament or 2-6 lb braid
• Leader: same as mainline (or 2 lb fluorocarbon if pressured)
• Why: panfish are tiny in winter and very pressure-sensitive. 2-3 lb mono on a noodle rod is standard.

Walleye (average):

• Mainline: 4-6 lb mono or 8-12 lb braid
• Leader: 6-8 lb fluorocarbon (10-12 lb if there’s pike risk)
• Why: walleye fight hard but rarely break light line. The fluoro leader handles abrasion on tooth/gill plates.

Trophy walleye:

• Mainline: 6-8 lb mono or 12 lb braid
• Leader: 10-12 lb fluorocarbon
• Why: bigger fish, more opportunity for a hooked walleye to wrap line on structure.

Lake trout:

• Mainline: 8-12 lb mono or 15-20 lb braid
• Leader: fluoro to mainline rating
• Why: lake trout fight long but not hard. Heavier line for the longer reel-in from deep water.

Northern pike:

• Mainline: 12-20 lb mono or 30 lb braid
• Leader: REQUIRED. 30+ lb fluorocarbon or single-strand wire (steel/titanium). Pike teeth slice mono in seconds.
• Why: pike are pure brutality plus a mouthful of teeth. No leader = lost fish + lost lure on every other bite.

Trophy pike (40+ inches):

• Mainline: 20-30 lb braid
• Leader: 60+ lb wire or 80 lb hard mono
• Why: a big pike thrashing under the ice is one of fishing’s most violent moments.

Whitefish:

• Mainline: 4-6 lb mono or 6-8 lb braid
• Leader: 4-6 lb fluoro
• Why: small mouths, gentle bite, but they fight hard. Light line with some stretch keeps small hooks set.

Burbot:

• Mainline: 8-15 lb braid
• Leader: 10-15 lb fluoro
• Why: caught off-bottom in deep water at night. Heavier line for the long reel-in; burbot will twist line into impressive knots if you give them time.

Mainline type tradeoffs:

Monofilament: stretches, hides better in cold water, casts (or drops) smoothly. Best for panfish where stretch helps avoid tearing the hook out. Subject to memory in cold weather; coil more in winter.

Braid: zero stretch (instant hookset, especially in deep water). Way thinner per pound test (8 lb braid is the diameter of 2 lb mono). Sees through ice as a dark line. Always pair with a fluoro leader.

Fluorocarbon: nearly invisible in water (highest refractive index match). Stiffer than mono, more abrasion-resistant. Great as leader; some run pure fluoro mainline for ultra-clear water and educated fish.

Depth and line stretch: at 30+ feet, 1 foot of stretch becomes meaningful — slow hooksets and missed bites. Many anglers switch from mono to braid for deep-water perch and walleye specifically because the lack of stretch lets you set the hook before the fish spits the bait.