Updated October 15, 2026
    nymph

    Copper John

    Imitates attractor/general mayfly nymph

    John Barr's heavily weighted attractor nymph. Sinks fast and triggers strikes.

    Buy at AmazonTie it yourself

    Hook sizes

    #14#16#18

    in copper, red, green, blue

    Type
    nymph
    Imitates
    Attractor/general mayfly nymph
    Difficulty
    beginner
    Technique
    indicator, euro-nymph
    Water
    freestone, tailwater

    Tie it yourself

    When to fish it

    Year-round in faster water. Great as a point fly in nymph rigs.

    Rainbow troutBrown troutBrook troutCutthroat TroutSteelheadWhitefishTroutSalmon

    Where to buy

    Amazon→

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