Fly fishing · Methods
Fishing on top or fishing below — the two core ways to catch a trout on a fly. Why nymphs catch more fish, why dry flies are more fun, when to reach for each, and how a dry-dropper rig lets you have it both ways at once.
The short version
Here’s the honest trade every trout angler learns. Trout do the great majority of their feeding below the surface, picking off the immature insects — nymphs — drifting in the current. So fishing a nymph down where they’re looking simply catches more fish, most days. But it’s subtle work; the take is a twitch of a line, not a splash.
The dry fly is the opposite: less consistent, because it only works when fish look up, but absolutely electric when they do — you watch the trout rise through clear water and eat off the top. Most of us nymph to fill the day and fish dries for the moments we remember. And with a dry-dropper, you don’t have to choose.
Side by side
| Dry fly | Nymph | |
|---|---|---|
| Where it fishes | On the surface — imitates adult insects | Below the surface — imitates immature insects drifting |
| The take | Visual and thrilling — you see the trout rise and eat | Subtle — detected by a strike indicator or the line |
| When it shines | During a hatch, or when fish are rising | Most of the time — even when nothing's showing on top |
| Productivity | Fewer fish, but unforgettable when it's on | More fish — trout feed subsurface the great majority of the time |
| Difficulty | Easy to see, harder to time the conditions | Catches more, but strike detection takes practice |
| Best for | The pure joy of the surface eat | Consistent action and learning to read a drift |
Frequently asked
Dry-fly fishing presents a fly that floats on the surface, imitating an adult insect — you watch the trout rise and eat it. Nymph fishing presents a fly below the surface, imitating the immature insects that drift along the bottom, where trout do most of their feeding. Dry-fly is visual and exciting; nymphing is subtler and usually more productive. They're the two core ways to catch a trout on a fly, and good anglers do both.
Neither is 'better' — they shine at different times. Nymphing catches more fish on most days because trout feed below the surface the great majority of the time, so it's the percentage play when nothing is rising. Dry-fly fishing is less consistent but far more thrilling, since you see the eat — and during a good hatch, when fish are rising, it can be the most productive method too. Many anglers nymph to catch fish and fish dries for the joy of it.
Fish a dry fly when trout are feeding on the surface — during an insect hatch, when you see rises dimpling the water, or in warm months when terrestrials like hoppers and ants fall in. Mornings and evenings often bring hatches; midday in summer can bring terrestrial action. If nothing is rising and the surface is quiet, fish are usually feeding below, and that's the time to switch to a nymph.
A dry-dropper is the best of both worlds: you tie a length of tippet to the bend of a buoyant dry fly and hang a nymph beneath it. The dry fly both catches surface-feeders and acts as a strike indicator for the nymph drifting below. It lets you cover two feeding zones with one cast and is a favorite searching rig on mountain streams, where it's a great way for a beginner to hook up while learning to read the water.
Both have a place, but a dry-dropper rig is a friendly starting point — the visible dry fly is easy to track and doubles as your strike indicator for the nymph below, so you catch fish while learning. Straight dry-fly fishing is the most fun to watch and simple to understand, while pure nymphing teaches you to read a drift and detect subtle takes. A guide will usually start you on whatever the water is giving that day.
