Minnows work best for crappies all the time, and try very small minnow imitations like the Frizz as artificials. Bluegills were spawning, or trying to, when the worst of the front hit. They were removed from the shallows also. This could mean that they will not spawn any more this year as they have been put off twice by cold fronts. Look for them this week in weeds, and check out the evening action with hatches as it warms.
Worms are best.