Remember that crappies have large, fragile mouths. I have lost a lot of crappies on my local lakes using small flies. Remember that most non-fly fishermen use size 2, 1, and even 1/0 aberdeen hooks for crappies. Crappies are not bluegills....

When I'm targeting crappies I use a minimum of size 6 hooks. Crappies are primarily baitfish eaters and they are not shy about eating streamers. I tie and use a simple sort of streamer on a size 6 dry fly hook (light wire) with a bead head, heavily dubbed ice-dub body and a marabou tail just as long as the body. White, white with pink, chartreuse, any color really.