Hi Marty,
Keep up with the bbs for a while yet, as long as they keep eating it. Start adding some finely shaved beef heart , just a little as you add the bbs. Also FD blackworm cubes. I like to press one or two on the glass a cpl times a day.
You can remove from the parents anytime after they accept bbs, but it is possibly easier to handle them if you can wait a week or so longer.
Rod