Rainbow Perdigon
The Rainbow Perdigon is a slim modern euro nymph in the perdigon family, built around a rainbow flash body for fast sink rate and high-confidence trout takes. It supports Rainbow Perdigon fly pattern, perdigon nymph, and best euro nymph for trout searches.
Imitates: Scuds, sow bugs, and attractor nymphs
Quick Reference
- Best Sizes
- #14-20
- Best Season
- Year-round
- Best Conditions
- Clear riffles, deep slots, and technical trout water on tight-line rigs
- Water Temp
- 40-62°F
- Recommended Tippet
- 5X-6X fluorocarbon
How to Rig It
Fish the Rainbow Perdigon as the point fly on a euro rig in moderate depth, or above a heavier anchor in deep runs.
How to Present It
Lead the fly on a tight drift just faster than the bubbles, keeping near-constant contact through the seam.
Why It Works
The slim rainbow flash body penetrates fast water quickly while still presenting a clean natural silhouette pressured trout will eat.
History
Perdigons originated in Spain as competition flies and now define modern euro nymphing across U.S. trout rivers.
Pro Tip
Carry the Rainbow Perdigon in multiple sizes — drop one full size in pressured tailwater before changing colors.
Frequently Asked Questions
What does the Rainbow Perdigon imitate?+
Scuds, sow bugs, and attractor nymphs — fish it as a slim natural nymph in clear water.
When should I fish the Rainbow Perdigon?+
Fish it whenever you need maximum sink rate and a clean perdigon silhouette for selective trout.
Not sure if Rainbow Perdigon is right today?
Get a fly recommendation based on live water temp, flow, sky, and time of day for any river in the US.
Open Fly Advisor
Map
Fly Guide