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Diagram

Fish N Fool Knot

Fish-N-Fool · Improved Uni · FishNFool

Tying a hook to line, including slippery braided line, with a uni knot that makes two turns through the eye instead of one.

Terminal · Intermediate · Monofilament / Fluorocarbon / Braid · 4 steps

ApplicationsHow to tie it

Finished structure

No drawing of this exact knot yet. The written steps are the reference.

  1. Step 01

    Run the end of the line through the hook eye twice in the same direction, leaving a tag of about 15 cm (6 in).

    No drawing of this exact knot yet. The written steps are the reference.

    You should now see

    Two turns of line through the eye lying side by side, with about 15 cm (6 in) of tag beyond them.

    If it goes wrong

    The second pass riding over the first turn in the eye. The two turns stack on top of each other instead of lying side by side.

    Fix: Pull the tag back out of the second pass and feed it through again beside the first turn.

    Why: NetKnots describes this knot as a Uni knot tied with two turns through the eye instead of one. The doubled contact at the eye is the difference.

  2. Step 02

    Lay the tag back along the standing line to make a double line, then bend the tag into a loop that hangs below the standing line and hold it there.

    No drawing of this exact knot yet. The written steps are the reference.

    You should now see

    The tag alongside the standing line forming a double line, with a loop of tag hanging below it, held between thumb and finger.

    If it goes wrong

    The tag crossing to the far side of the standing line, or the loop dropping over the hook. The loop twists and the wraps will not lie evenly.

    Fix: Let go, lay the tag straight along the standing line again, and reform the loop so it hangs clear below the line.

    Why: The loop is what the turns pass through in the next step. Holding it steady keeps the double line straight so the turns lie side by side.

  3. Step 03

    Make five or six turns with the tag around the double line, passing the tag through the loop on every turn.

    No drawing of this exact knot yet. The written steps are the reference.

    You should now see

    Five or six even turns around both lines inside the loop, lying side by side, with the tag end coming out past the last turn.

    If it goes wrong

    Wrapping outside the loop instead of through it, or wrapping only the standing line. When the tag is pulled the turns unravel instead of coiling.

    Fix: Unwind the turns and make them again around both lines, taking the tag through the loop each time.

    Why: Each turn passes through the loop, so pulling the tag closes the loop and draws the turns into a coil around the standing line.

  4. Step 04

    Wet the lines and pull the tag to snug the turns into a coil. Then pull the standing line to slide the knot down to the eye and tighten it. Trim the tag.

    No drawing of this exact knot yet. The written steps are the reference.

    You should now see

    A neat coil tight around the standing line, sitting right against the two turns at the eye, with a short tag.

    If it goes wrong

    Leaving the coil partway up the line, or trimming before the knot reaches the eye. A gap stays between the coil and the eye and the knot can slip.

    Fix: Hold the hook and pull the standing line until the coil is down on the eye. If it will not slide, cut it off and tie it again.

    Why: Snugging the turns first makes them coil neatly around the standing line. Sliding the coil down then draws the two turns at the eye tight against it.

HTH · Reference layout

Fish N Fool Knot — finished-state checks, on the shared reference layout

Fish N Fool Knot — finished-state checks, on the shared reference layout
Hook the Horizon reference plate
Failure modes

When this family fails, it fails as these. The recovered end still outranks the name.

HTH · Advanced failure modes

Fish N Fool Knot — what fails and what to do

Fish N Fool Knot — what fails and what to do
Hook the Horizon reference plate
Uni family

A barrel that is formed, then slid to the eye or the other barrel.

  • !Barrel locked short of the eye or the other Uni
  • !Crossed wraps in the barrel
  • !Tag buried back into the barrel instead of exiting
Fails when
  • !Coil stops short of the eye, leaving a gap that lets the knot slip
  • !Turns miss the loop or the double line, so they unravel instead of coiling
  • !Tag trimmed before the coil is slid down onto the eye
Geometry
  • Second eye pass crosses the first

    Weak side — barrel walks off the eye

    Fish-N-Fool is two clean passes plus a Uni-style barrel to the eye · step 01

  • Barrel closed mid-line, short of the eye

    Unfinished — walks on braid

    Slide the barrel to the eye before the lock · step 03

  • Loop captured the hook instead of the eye passes

    Wrong structure

    The wraps belong on the doubled standing, not around the hook · step 02

If you saw this
  • Barrel walks off the eye or slips on braid

    Check

    • ?Two clean eye passes
    • ?Barrel butted to the eye

    Then

    • Retie with more wraps
    • Confirm the eye accepts the doubled pass
  • Doubled strands cross before the overhand.

    Check

    • ?Look for: Doubled strands cross before the overhand.

    Then

    • Keep strands parallel; retie if crossed.
  • Overhand loop traps lure hardware incorrectly.

    Check

    • ?Look for: Overhand loop traps lure hardware incorrectly.

    Then

    • Retie sending only the free loop over the hardware.
  • Knot sits crooked at the eye after the first pull.

    Check

    • ?Look for: Knot sits crooked at the eye after the first pull.

    Then

    • Draw both legs evenly while seating.
  • Tag frays at the seat after a few casts.

    Check

    • ?Look for: Tag frays at the seat after a few casts.

    Then

    • Inspect the eye, leave a safer tag, retie if abraded.
  • Finished check failed — eye passes cross inside or outside the eye

    Check

    • ?two eye passes stay parallel
    • ?Uni-family wraps are orderly
    • ?barrel seats against the doubled eye contact without crossing

    Then

    • Retie. abrasion at the eye or reduced slip resistance.
  • Second eye pass crosses the first

    Check

    • ?Weak side — barrel walks off the eye
    • ?Inspect step 01

    Then

    • Retie. Do not dress a defective structure and call it seated.
  • Barrel closed mid-line, short of the eye

    Check

    • ?Unfinished — walks on braid
    • ?Inspect step 03

    Then

    • Retie. Do not dress a defective structure and call it seated.
  • Loop captured the hook instead of the eye passes

    Check

    • ?Wrong structure
    • ?Inspect step 02

    Then

    • Retie. Do not dress a defective structure and call it seated.
Same family

Same failure class, different geometry. Open the plates — Diagnose still starts from the symptom.

This failed — start Diagnose

Not ideal for

  • ×Tiny eyes that pinch the second pass
  • ×Very heavy braid where a dedicated braid terminal is cleaner