So I just read a weird little tip: In order to preserve sand fleas, you blanch them while they're still alive (4-8 seconds in boiling water, then plunge them into cold). Then you freeze them. This supposedly makes them hold up well. Some people even add vinegar and food coloring to the cold water they're put in afterwards to color them. Has anyone ever done this? There's nothing more frustrating than trying to chase down puppy drum in the late fall and early winter and not being able to find any of the little buggers for bait.