Flame Thrower Micro Leech

The Flame Thrower Micro Leech from BCFlyguys is a simple yet effective stillwater pattern utilizing UV Straggle (Brill UV) material. This micro leech takes advantage of the UV-reactive properties to create flash and attraction that triggers strikes from cruising trout in BC Interior lakes and similar stillwater environments.

Flame Thrower Micro Leech fly pattern - imitates Leeches tied for Trout
  • Beginner
  • Year Round
  • Trout
  • Size 12–14

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The Flame Thrower Micro Leech from BCFlyguys is a simple yet effective stillwater pattern utilizing UV Straggle (Brill UV) material. This micro leech takes advantage of the UV-reactive properties to create flash and attraction that triggers strikes from cruising trout in BC Interior lakes and similar stillwater environments.

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Materials

Hook
Scud or curved nymph hook, #12-14
Thread
Black or red, 8/0
Bead
Tungsten or brass bead, gold or copper
Body
Brill UV Straggle (Micro Straggle), flame/orange

Overview

This BCFlyguys pattern demonstrates the effectiveness of UV-reactive materials in stillwater presentations. The Brill UV Straggle creates a translucent, flashy body that mimics the appearance of small leeches while providing additional attraction through UV reflection. The simple construction makes this an excellent pattern for tyers looking to quickly fill their stillwater box.

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Behavior & presentation

Natural Behavior
Juvenile leeches swim with exaggerated jerking motions in shallow water, their tiny bodies pulsing irregularly as they navigate weed edges and muddy shoals. The flame-orange UV straggle fibers mimic the translucent, protein-rich tissue of these micro prey items that trout encounter while cruising shoal margins in search of easy calories.
Where Trout Eat It
Trout cruise shallow shoals targeting juvenile leeches that hunt along muddy margins.
How to Fish It
Use slow 1-3 inch pulls with long pauses. Fish near bottom then gradually work higher in water column.
Best Water
Shoals and weed edges where micro leeches concentrate in productive 5-12 foot zones.
Strike Type
Takes arrive as confident thumps during the pause or sudden pulls mid-strip—the tungsten bead telegraphs strikes clearly through hand-twist retrieves and slow pulls.

Fishing strategy

Rigging Suggestions
Fish on 12-15 foot leader with 5X-6X fluorocarbon tippet under a sensitive strike indicator. The small bead provides adequate weight for shoal presentations.
Seasonal Timing
effectiveness in BC Interior lakes and similar lake environments. Micro leeches are present throughout the year, making this a reliable searching pattern.
Pro Tips
The UV Straggle provides excellent visibility through UV reflection while the flame/orange coloration creates a distinctive attractor profile. The bead ensures proper sink rate for reaching cruising trout.

Entomology

Small juvenile leeches navigate shallow margins and shoal areas with jerky, start-stop swimming motions as they seek microscopic food sources. Trout feeding in these zones find micro leeches irresistible because they represent bite-sized, high-protein snacks that require virtually no pursuit energy.

Organism
leech
Life stage
general

Pattern details

  • Stillwater
  • British Columbia
  • active-retrieve
  • strip-retrieve
  • beginner-friendly
  • attractor
  • searching-pattern