I kinda think trout can see anything... I fish with midges and nymphs most of the time usually as droppers under an elk hair cadis or something. I use midges down to size 20 and up to 14 sometimes, nymphs, usually 12, 14, 16..... the drys I drop from are usually 12, 14, sometimes 16s if the fish are getting picky. I have pretty good luck with this stuff most of the time.

I like to use floating stuff for bass, cause of the rush I get from topwater takes..... I think bass can see anything too.

.......Modoc Dan.......