Zebra Midge
If you fish a Tennessee tailwater (Caney Fork, Holston, Watauga, South Holston, Clinch, Hiwassee, Apalachia) and you only carry one nymph, carry a #20 zebra midge. Midges hatch 365 days a year on cold-release water. Trout eat them more consistently than any other food source.
Tying / picking
A zebra midge is a slim midge larva pattern: thread body, ribbing wire, a bead head, a few wraps of thread for the wing case. The "zebra" name comes from the contrasting body and rib.
Standard color combos:
- Black body, silver rib, black bead (the OG). Works everywhere, all year.
- Red body, silver rib, silver bead. Bloodworm imitation. Late winter through spring.
- Olive body, copper rib, copper bead. Slightly more imitative; some trout prefer it.
Stick to sizes 18-22. #20 is the right default.
Fishing it
Under an indicator
The most common rig: indicator (Thingamabobber, yarn, or a dry-dropper), 18-30 inches to the midge, with a small split shot 6 inches above the fly if the depth requires it. Dead-drift through likely holding water. Set on any pause or twitch of the indicator.
Tight-line / Euro
Strip 6-8 feet of leader past the rod tip, weight the fly with a tungsten bead or a small shot, follow the drift with the rod tip a few inches above the water. The midge ticks bottom; you feel takes through the leader. Lighter takes than indicator rigging but you catch more.
Dry-dropper
#16 sulphur on top, 18-24 inches to the midge. The dry indicates; if nothing else, the midge catches fish that won't look up.
When it stops working
If you're getting refusals or short-strikes on the midge, the problem is usually:
1. Too much weight. The fly is dragging unnaturally fast. Lighten the shot or move it up the leader.
2. Tippet too heavy. 6X minimum, 7X if the water is gin-clear (Clinch, SoHo).
3. Wrong depth. Move the indicator until the fly ticks the seam where you're seeing fish hold.
Why size matters more than color
In side-by-side tests on Caney Fork, anglers swapping between black, red, and olive midges of the same size catch roughly the same number of fish. Anglers swapping size between #18, #20, and #22 see dramatic differences. If you're not catching, downsize before you change color.