I've had most of my luck with nightcrawlers and crickets or grasshoppers. Grasshoppers work well with a clear bubble, because they can be dragged across the top of the water.

Night-crawlers, i usually cut them into a bunch of pieces, depending on how big they are. Sometimes we dig our own worms at my buddys house and those are pretty small usually so we use the whole worm. Ive also had good luck with the little powerbait balls in a couple different colors.

Get a clean hypodermic needle from a diebetic friend. Hook a nice fat 'Crawler on a rig with a 12" leader with a sliding sinker above it. insert the needle into the worm and inject some air. Don't worry the worm won't die. When you thow this out the worm will float above the moss & mud on the bottom and wiggle thus becoming much easier for a Trout to see. I watched an old guy hauling them in one day at a local lake while others caught nothing and this is what he was doing. I did it and caught a 6 pounder. Give me a few and I will post the pic. Just click my name and then click on my pics.

crickets and craw tails

worms or small minnows

hellgramites kill trout up north, but they will bite you if they get half a chance

if im using live bait waxworms but i usually use canned corn cuz i fish wit cody all the time... its alot better it lets off the most smell nd its easy to c in the water

Night Crawlers and Minnows

Currently, when stream fishing bait, I use nightcrawlers, most often on a circle hook and unweighted on 2# line. If the current is strong, I'll add small nymph weights.

One day, when nothing (lures, worms, and eggs) was working for me and locals were catching fish left and right, I asked them what they were using. They told me grasshoppers! I grabbed one from some tall grass, threaded it on and hooked a nice rainbow on my first cast!! This repeated -- sometimes taking two or three casts -- until I soon had my limit!! I've used live grasshoppers several more times when a lot of them were flying around and having little or no luck with anything else with the same results. They seemed so good, I've bought several grasshopper lures that can be cast with ultralight, but haven't had the same success as with the live ones.

Had a similar experience with hellgramites on a lake. Wasn't catching anything while a group of guys were having a ball. Asked them what they were using and they rolled a floating log over and pulled several of the nasty critters off and showed me. I subsequently did that, put it on my hook, and like with the grasshoppers had a trout on, on my first cast!! Didn't take long after that to limit that morning either.

Canned corn must be great bait. I don't know if it still is, but it used to be banned as a bait in CO. I once watched an old lady fishing a warmwater lake and having a lot more success than the other fishers. She was tossing canned corn out as chum, baiting her hook with several kernals and hauling 'em in!!

Night Crawlers!!!