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Wet fly and soft hackle · Rainbow Trout

12-Foot Stillwater Wet Fly Leader

A 12-foot mono leader for fishing wet flies on lakes with a floating line. It tapers in .002" steps from a 36 inch butt of .021" through nine sections to a 27 inch tippet of 5X, .006". The long, fine taper lands a small wet fly or soft hackle without a splash on calm water and lets it sink and hang the way trout see natural insects.

BBy BarblessOctober 14, 2026

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.021"
.019"
.017"
.015"
.013"
~13 lb0X.011"
~9.5 lb2X.009"
~6.5 lb4X.007"
~4.5 lb5X.006"
BUTT · 36"
TAPER · 25"
TAPER · 16"
TAPER · 12"
TAPER · 7"
TAPER · 7"
TAPER · 7"
TAPER · 7"
TIPPET · 27"
Total length12' 0"
Rod3-5 wt
Flies1
Knots9
WaterLake or reservoir

Drag the drawing to pan. Tap a fly for what it does, a knot for how to tie it.

Build your leader

12' 0" of line · 9 pieces · Butt to tip

Butt .021"23456785X

Tie it

0 of 9 done

These are the finished lengths. Leave extra for tying each knot.

How to tie it

  1. Build the tapered leader

    Join the 36" butt to the 25" mid with a blood knot. Add 16" of .017" with a blood knot. Add 12" of .015" with a blood knot. Add 7" of .013" with a blood knot. Add 7" of 0X with a triple surgeon's knot. Add 7" of 2X with a triple surgeon's knot. Add 7" of 4X with a triple surgeon's knot. Add 27" of 5X with a triple surgeon's knot.

    Tie a blood knotTie a triple surgeon's knot

  2. Tie on the fly

    Tie the fly to the 27" tippet with an improved clinch knot.

    Tie an improved clinch knot

The knots

  • Blood knot · 5 turns×4
    1. Overlap the two ends by about six inches.
    2. Wrap one tag end around the other line five times, then bring it back and pass it between the two lines where they cross.
    3. Wrap the other tag end five times the opposite way and pass it back through the same opening from the other side.
    4. Wet the knot and pull the two standing lines steadily until the wraps seat. Trim both tags close.
    The blood knot, step by step
  • Triple surgeon's knot · 3 turns×4
    1. Lay the new line alongside the end of the leader so they overlap about six inches, the ends pointing opposite ways.
    2. Holding the two lines as one, tie an overhand knot, passing the whole new piece through the loop.
    3. Pass the same ends through the loop twice more, three times in all.
    4. Wet it and pull all four ends evenly to seat the knot. Trim the tags.
    The triple surgeon's knot, step by step
  • Improved clinch knot · 5 turns×1
    1. Pass the tippet through the hook eye and pull about five inches through.
    2. Wrap the tag around the standing line five to seven times.
    3. Pass the tag through the small loop just above the eye, then back through the large loop you just made.
    4. Wet it and pull the standing line so the wraps snug down against the eye. Trim the tag.
    The improved clinch knot, step by step

When and how to fish it

Fish it on a 3-5 wt with a floating line over weed beds, drop-offs and shallow bays. Cast, count the fly down to the depth fish are taking, then retrieve slowly with a figure-eight hand twist and long pauses. Fish it higher on warm days and deeper when the water is cold. Watch the line tip, and tighten into any draw or stop by pulling the line rather than jerking the rod.

Trout often take on the pause. When the line tip moves, tighten by pulling line with the rod low; a hard lift breaks 5X.

Common questions

  • What line should it go on?

    A floating line on a 3-5 wt. A 12-foot taper is too long for a sink-tip, which wants a short leader to keep the fly down.

  • Why a 5X tippet?

    The .006" tippet lets small wet flies sink and move naturally in calm, clear lake water. For big fish or heavier flies, swap it for 4X of the same 27 inch length.

  • How deep does the fly fish?

    As deep as you let it sink before retrieving. Count the fly down after each cast and change the count until fish take.

  • Which knots join it?

    Blood knots join the five heavier sections, triple surgeon's knots join the finer ones, and an improved clinch knot ties on the fly.

Rainbow TroutBrown TroutCutthroat TroutWetStillwaterLake

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