I always refrigerate my wax worms and never have a problem keeping them for weeks. The only time I have trouble is if they get shoved to the back and freeze. I have caught bluegill on mealworms but wax worms are my go to bait. They seem to be like candy for bluegill. To me mealworms are just too tough. The only plus is they are so easy to keep alive. I must say I would use them before I use crickets....I hate crickets. Way too fragile, tough to keep on the hook, and get away too easily leaving you with a boat full of crickets that drive you nuts all summer long when you are fishing.