I don't tie many kinds of flies, but there are times when I tie a lot of Clouser Minnows. This streamer may be the most famous fly ever. Developed by Susquehanna River smallmouth guru Bob Clouser in the 1980s, the classic version sports dumbbell eyes, a white deer-hair belly, strands of Krystal Flash, and a chartreuse back. Lefty Kreh is said to have caught 86 species on Clousers. I'm nowhere near that, but I've pulled a Clouser out of a pretty wide sampling of fish lips. Bass of the various tribes--largemouth, smallmouth, striper. Trout and char, bluefish and mackerel. You can fish a Clouser on a steady retrieve, or make it dive, skitter, and flutter in river current. Depending on the presentation, it's a minnow, crayfish, sand lance, leech, or hellgrammite. It's about the fishcatchingest fly out there.