Description
Stonefly Nymphs – The Year-Round Secret
Why Stonefly Nymphs are a must-have:
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Protein Power: These nutrient-rich nymphs are a primary food source for trout and grayling all year long.
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Easy Targets: As poor swimmers, they often lose their grip and drift downstream, becoming an effortless "snack" for waiting fish.
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Bottom Dwellers: Unlike many insects, they don't swim to the surface to hatch; they crawl to the shore. This keeps them in the "strike zone" near the riverbed for their entire life cycle.
J:son Tungsten Stonefly Nymph 2 Black – Barbless (#4)
The High-Contrast Heavyweight – Dinocras and Perla Specialist The J:son Tungsten Stonefly Nymph 2 Black Barbless in size #4 is a substantial 26 mm imitation, featuring an integrated tungsten core and a premium barbless hook. This "Medium-Large" model is the perfect choice for high-energy water where a strong silhouette and fast sink rate are required to trigger a strike.
Why this fly works:
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The "Safety-First" Trophy Fly: Equipped with a high-quality barbless hook, this fly is designed for the ethical angler. It provides deep penetration and a secure hold during the fight but allows for a smooth, damage-free release of wild fish.
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Rapid Depth Entry: The internal tungsten weight is precisely balanced for the 26 mm profile. It allows the nymph to cut through surface tension and heavy currents, reaching the "feeding zone" at the riverbed where large stoneflies are naturally found.
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Maximum Contrast: Black is widely considered the best color for high-visibility silhouettes. Whether you are fishing in deep, dark pools or bright, bubbly riffles, the solid black profile stands out clearly, making it easy for predatory fish to track and intercept.
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Soft-Body Realism: J:son’s signature flexible materials ensure that the legs and body segments vibrate naturally. Unlike hard-bodied weighted flies, this nymph feels soft to the fish, encouraging them to hold on longer, which results in more successful hook-sets.
Pro Tip: This is an exceptional "all-around" nymph for big-river grayling and trout. Use it as your primary anchor nymph when fishing fast pocket water. In slightly colored water after a rain, the black color is particularly effective as it remains visible when more natural, lighter colors tend to disappear.