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When To Use Mono, Braid or Fluorocarbon

By Craig Ritchie - April 9, 2019
Many anglers prefer to carry multiple outfits spooled with a range of lines, so they always have the ideal combination ready to go.
Buying fishing line used to be easy - you picked the brand, tint and breaking strength you like best, and head for the cash register. There wasn't much more to it.

Not so today, with fishing stores offering braided lines, fluorocarbon lines and monofilament lines in a huge range of sizes, colors, brands and styles - to the point that some anglers are starting to feel they need an engineering degree just to spool up a reel. Here's a simple guide to choosing line so that your next trip to the tackle store is a lot less stressful.


Mono line has been around forever and although it's taken a back seat to newer arrivals in recent years, it's still great stuff and in some situations, is the best stuff to use. Monofilament line floats fairly well and is stiffer than most braids, making it ideal when fishing with topwater baits - especially when using walk-the-dog or stop-and-go presentations. It's also a top choice for fishing with reaction lures like crankbaits or spoons, since it has more stretch than either braid or fluorocarbon and better withstands the shock of a hard hit. By stretching under pressure, mono helps prevent your hook from tearing a hole in a fish's mouth. Mono is also super-easy to use, and it works extremely well with most common types of knots.

The disadvantages to mono are its stretch, which can make long-distance hooksets less certain, and its tendency to dry out and coil when it gets old, at which point it becomes almost impossible to cast.

Its ability to float well makes monofilament the top choice for use with topwater baits.


Although many anglers think of it as the new kid on the block, braided lines have actually been around longer than monofilament. Braid regained popularity in recent years with the introduction of new fibers like Dyneema, which give it incredible strength for its diameter. It also doesn't stretch at all, so hooksets at long distances are a sure thing. It's also great for use in heavy cover, since it tends to saw its way through vegetation. Braid's lack of stretch also makes it a popular choice when sensitivity counts.

The downside to braid - and it's a huge one - is that the stuff stands out in the water like a rope. Fish can see it easily, which means that unless you're fishing at night or in heavy cover, you will need to tie on a two-foot mono or fluorocarbon leader between the braid and your bait. The other major issue with braid is that many types of knots tied with it tend to slip easily (Palomar knots being the sole exception). Finally, its soft and supple construction means that when you get a backlash with braid, you usually get a whopper - one that can only be resolved with a fillet knife. Ironically, the backlash is one knot that never seems to slip.

Braided lines offer tremendous strength, but are easy for fish to see in the water.


Fluorocarbon lines exploded onto the fishing scene in the 90s at the height of the finesse presentation era. The big plus to fluorocarbon is that it basically disappears underwater and is extremely difficult for fish to see, making it ideal for fooling heavily-pressured fish.

The problem with fluorocarbon is that it's stiff and it's really expensive. Pure fluorocarbon lines are so stiff they're almost impossible to cast, so pure fluoro is almost always sold as leader material (fluoro lines that come on spools big enough to fill your reel with are almost always a blend of fluoro and mono). It also requires care when tying knots, since if you don't wet the line before pulling the knot tight, it will often fail. Fluorocarbon tends to sink at rest, making it a poor choice for topwater presentations.

With their greater stretch and ability to absorb shock, both monofilament and fluorocarbon are better choices than braid when fishing with reaction baits.

Decisions, Decisions

So what do you buy? Each type of line has its strengths and weaknesses, which is why smart anglers usually carry multiple rods in the boat, some loaded with mono, others with braid or fluorocarbon. When they switch presentations or lures, they simply grab a rod that's loaded up with the kind of line they need so they're always getting the best advantage.

Author Craig Ritchie
Craig Ritchie
Over a near 40-year career as a full-time outdoor writer, Craig Ritchie has fished all over the globe for a variety of freshwater and saltwater species. The author of The Complete Guide To Getting Started In Fishing, he has written thousands of articles for magazines, websites and newspapers worldwide, appeared as a guest on several television fishing programs and won numerous awards for his writing and photography. He lives in the Great Lakes region where great fishing is as close as his own back yard.
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