The three line types
The three main fishing line types are monofilament, fluorocarbon, and braid. All three are used on the ice, and each suits different situations. The right choice depends on the species you target, the clarity of the water, and how much feel you want.
Quick comparison
| Feature | Monofilament | Fluorocarbon | Braid |
|---|---|---|---|
| Stretch | Moderate | Low to moderate | Very low |
| Visibility | Moderate | Low in water | High, usually |
| Sink rate | Slow | Faster | Floats or sinks slowly, depending on the line |
| Cold-weather handling | Often good, with low memory in ice-specific lines | Can be stiffer | Can hold water and ice up |
| Diameter for the same strength | Thicker | Similar or slightly thinner | Thinnest |
| Cost | Usually lowest | Higher | Higher |
These are general tendencies. Individual products vary, so check the maker’s specifications.
Monofilament
Mono is the traditional ice fishing choice. It stretches a bit, which can help cushion light hooksets and reduce pulled hooks. Ice-specific mono is designed to hold up in cold with low memory, meaning it does not coil as much on the spool. It is generally affordable, easy to handle, and easy to tie.
The downside is that stretch dulls bite detection at greater depth, and it is thicker than braid at the same strength. It also absorbs a little water over time.
Fluorocarbon
Fluorocarbon is less visible in water and sinks faster than mono, which helps small jigs fall and lets you feel them more directly. Many anglers use it as a leader or as the main line when fish are line-shy, for example in clear water. It tends to resist abrasion well.
Tradeoffs include a stiffer feel in some lines, which can create coils in cold temperatures, and a higher price. Good knot technique and wetting the line before tightening help prevent weak knots.
Braid
Braid has very little stretch and is thin for its strength, so it transmits bites well and lets you fit more line on a small reel. Anglers use it for deeper fishing and for fishing bigger species where you need to set the hook through a long line.
The downsides on the ice are visibility and icing. Braid can absorb water and freeze up, which causes problems at the rod guides. It is also more visible to fish, so many anglers attach a mono or fluorocarbon leader. Because it is slick, it needs proper knots such as those recommended by the line maker.
What’s better, mono or fluorocarbon?
Neither wins everywhere. Mono is forgiving, affordable, and easy to use, and it is a good starting point. Fluorocarbon is less visible, sinks faster, and is often preferred as a leader or for clear, pressured water. A popular combination is mono as main line with a fluorocarbon leader.
What’s stronger, 20 lb braid or 20 lb mono?
The pound rating on the package is a labeled strength, and braid and mono with the same label are meant to break at similar loads. The practical difference is diameter. Braid of a given strength is much thinner than mono, so a 20 lb braid is closer in diameter to a much lighter mono. That thinner profile can feel more sensitive and cut through water better, but braid does not stretch, so a hard hookset can pull hooks from soft-mouthed fish. Labeled and actual breaking strengths also vary by manufacturer and by knots, so treat the number as a guide.
For most ice fishing, 20 lb line is heavier than necessary. Panfish and perch gear typically use much lighter line.
Choosing by species and technique
- Panfish and perch: very light mono or fluorocarbon is common. This helps small jigs move naturally. See our ice fishing for perch tips.
- Kokanee and trout: light, low-stretch, sensitive setups help with soft bites. See our kokanee ice fishing tips.
- Walleye, pike, and larger fish: heavier mono, fluoro, or braid with a leader. Pike have sharp teeth, so many anglers use a wire or heavy leader.
Your line choice also affects how you work a lure, so combine it with the cadences in our ice fishing jigging techniques article. If you use sonar to watch your lure, line choice affects how your jig sits, which our ice fishing flasher review touches on.
Cold-weather care
- Keep spare spools of line out of direct cold if possible.
- Replace line that looks frayed, kinked, or coiled.
- Keep your line out of the water or slush between uses to reduce icing.
- Stretch a few feet of new line when spooling to reduce memory.
Common questions
What type of line is best for ice fishing? Many anglers start with ice-specific mono. Fluorocarbon leaders and braid with a leader are good upgrades once you know what you want.
What are the three types of fishing lines? Monofilament, fluorocarbon, and braid.
Do I need to match line to rod and reel? Yes. Check the line rating on your rod and reel so the setup is balanced.