I asked a guy at a feed store today if they had unmedicated chick feed in pellet form, and he said, sure, it's layer mash. Make sure whatever you're feeding, it isn't for layers, as the feed is too high in calcium for the chicks (I know, that's backward from humans, but there you go). If they weren't vaccinated for cocci, and you want to have them medicated (i do, some people choose not to) then you need to make sure it is medicated *chick* feed. (starter/grower is another thing you might see on the bag label.)
Good luck
Oh, and mash is best when they are tiny, as crumbles can be a bit big for them for a few weeks yet.