Peacock bass is a freshwater species that many deem the world's most challenging freshwater gamefish to be tempted by the fly. Peacock bass are extremely aggressive and powerful. Peacocks sometimes gravitate towards certain sizes and colors while ignoring other offerings. Be sure to have a large selection of both topwater and subsurface flies in a variety of shapes, sizes and colors. The most successful flies for bigger fish are generally large profiled patterns tied on 3/0 and 4/0 hooks. Important patterns include poppers, divers and other large profile baitfish patterns such as Lefty's Deceiver variations and large Clouser Minnows.