If you want to breed them get a bin, make sure it gets air circulation or it can stink. Don’t pile the substrate too high or it will compact the worm supply. Put it in a cooler/ darker spot( I have mine in the laundry room in the basement)
avoid feeding them meat and citrus fruits.they don’t eat meat and citrus acids are harmful to the worms. But make sure you crush some egg shells and throw in some coffee grounds, this gives them gutload so they can digest better.
if you want to kickstart the breeding process, throw a bunch of your table scraps including the coffee grounds and eggshells into a blender with a bit of water to make a worm smoothie.pour it over the substrate and leave them be for a week. When you try to dig them up, they will be bunched up all over the place laying eggs everywhere.
