How to Tie the Seaguar Knot

Seaguar, the leading manufacturer of fluorocarbon lines, developed the Seaguar Knot. It was designed to attach tough leaders onto your monofilament mainline. The Seaguar Knot is not a perfect tool for every application.

Why not?

There are many knots that can do the same job and tie as fast, hold just as well, or better than the Seaguar Knot. They also have a smaller profile to pass through your guides. It doesn’t mean that the Seaguar Knot isn’t effective. In fact, it does. However, it’s seldom the first choice.

Fly angling is an exception, and the Seaguar has been a great choice as a connecting leader to tippet.

How to tie the Seaguar Knot

  1. Your mono main line and fluorocarbon lead should be overlapping. Allow 8-10 inches overlap.
  2. You can make a loop using both lines. There should be plenty of overlap in each direction.
  3. Twist the loop 3 times.
  4. Pass the leader and tag through the loop.
  5. Hold the line on each side of the knot and wet it thoroughly. Then pull it down carefully.

Learn from video

Seaguar Knot: Why Should You Rely?

  • Strong –The Seaguar Knot demonstrated 97% knot strength in leader-to-tippet tests, making it an extremely secure connection option.
  • Quick –The Seaguar Knot is very fast to tie and gets high marks.
  • Simple –Low visibility lines can make it difficult to tie a good knot. Seaguar Knot has one advantage: you don’t have to be able to see the lines well to make this knot.

The Seaguar Knot is a great choice for fly fishing. It doesn’t matter how big the knot connects to your tippet. It ties well and holds its shape very well.

The Seaguar Knot: What’s not to love?

Frankly, a lot.

The Seaguar Knot is not the only fly angling option. There are also the Blood Knot and the Surgeon’s Knot as well as the Double Uni. Each knot is strong and battle-proven. The Surgeon’s Knot and Blood knots both are significantly slimmer than the Seaguar when tied.

A tighter knot will allow for easier casting. This may not be an issue in saltwater, where the guides of saltwater rods are larger than those on bass rods. For largemouth, however, you need a slim knot. The Seaguar is not the best choice to join a fluorocarbon leader with your mono.

It is also a very special knot, created around the need for a mono to fluoro connection.It is not tolerant of lines with dissimilar sizes and diameters. Because it does not provide enough pressure to prevent slippage, it is completely ineffective in braid.

The Seaguar Knot in Braid – Just Don’t Do it!


This easy-to-tie tie knot can be tempting to attach your braided mainline to your fluoro lead, but it is not recommended.

The Seaguar Knot is not made for different diameters. This allows the smaller line to slip through. It also doesn’t provide enough pressure that will bind the Dyneema and Spectra fibers from which the braid is woven.

Engineers and scientists refer to braid as having a low coefficient of friction. This means that it doesn’t like to bite at itself. A braid knot that is strong and durable requires many turns and loops. This magnifies the pressure points and allows the braid to grip and bite.

Seaguar Knot was created around the high friction coefficient common to both fluorocarbon and nylon monofilament.No matter how tight the knot is, it will not stay in braid.

What happens when seaguar knots fail?

Although the Seaguar Knot can be used to connect monofilament main lines to fluorocarbon leaders, it is not a reliable method.

Several reasons are common for this:

  • Tie your knot using frayed or damaged linesKnot integrity will be compromised if the line is damaged. You should always inspect your line for fraying or nicks.
  • Do not tie the knot before you cinch.This step should not be skipped! Water or spitting can lubricate the line. This allows it to glide into place and form tight knots.
  • Tie the Seaguar Knot into a braidThis knot, regardless of how well-executed, will not hold in braided Superlines.
  • Radially different line diametersSeaguar Knots are designed to work with lines that are roughly equal in diameter. It is not recommended to change the size of your main line or leader.
Lewis Mark is a vastly experienced fly fisher. His encyclopedic knowledge of fly tying has led to start blog on fishing. He also review Fishing equipment based on his knowledge and experience.