I picked up a galvanized feed bin from a local feed store bought a bag of peat moss, and mixed the moss with water until it was moist, throughout. Then, I threw in the throw-away parts of the veggies we eat and some white corn meal, letting the bacteria build up a couple days. Then, I added the worms. They are fantastic pets, as they make no noise, do not beg, do not make a mess, and nobody gets mad when you use them as fish bait.
Oh, one more thing about the bin - I poked a lot of holes in the bottom of it and then covered it with screen (a piece from an old screen door). This allows draining. That drained fluid is called worm tea. Worm tea is good for your plants.
I have red wrigglers. They stay in the first couple inches of dirt, unless they get spooked. When you want to skim some of the dirt, knock on the side of the bin, causing your pets to dive a few inches down.
I use a piece of plywood to cover the top. I glued a couple wooden stakes at ten and two so that there can be ventilation. Sunburns are lethal for worms. :lol:
Worms like non-acidic plant matter. Want to make them happy? Toss in banana peels.
We eat a lot of fresh produce, so there is a lot of broccoli stalk pieces and the like that the worms love, but they eat more than we can eat, so I supplement them with corn meal mixed with glacier rock dust. The glacier rock dust makes the dirt even better for plants, and I read the worms need the rock dust for digestion.
According to friends who use worms for composting, they also like grass clippings and leaves. Mine don't seem to care much for that. I think mine are spoiled.
As far as temperature, they get more active and hungry as the temperature rises. Make sure and keep them moist. Obviously, they need water.
As far as low temps, my worms survived this winter, even with three days staying below freezing. Keep in mind, I live in south Alabama, so our temps are more moderate than a lot of other places. Insulating the sides will obviously keep the worm dirt from freezing. If the worms do freeze, count on the eggs for the spring brood, the frozen worms are a good protein source when you make wormcicles. :lol:
Make sure you name them I named them all Bob. Easier for me, and they don't seem to mind.
Remember, real men don't feel sorry for the bait, so don't go so far as trying to train them or house-break them.