Silver Bead Rainbow Warrior nymph wet trout fly is a must-have trout nymph pattern Heavily beaded head for getting deep in the water column quickly to catch fish! Effective on trout, bass, salmon. panfish or steelhead flies. Set of 9 - Hook Sizes 14, 16 and 18 Essential on rivers where insect nymphs and larvae are an important trout food. The zebra midge is a great stillwater fly pattern where chironomids are present. Chironomids can represent a significant portion of the trout's diet in stillwater.