Flygirl,

I have had good luck with shrimp patterns, in size 2 or 4 or smaller in clear conditions. Sometimes I tie the shrimp patterns with a green butt(like the green butted skunk). This is in rivers. In the salt or mouths of rivers, I have used small baitfish flies(blue flashaboo, and glow) Tied on 1 or 1/0. size dependent on clarity