Living crickets smell grody -- dead, rotting anything smells like decay. If they smell like something's rotting, I wouldn't use them.
Also, I haven't known many scorpions to take prekilled, so you may be better with live . . . although store-bought die quickly and smell . . . and my scorpions don't like roaches . . . and mealworms burrow. :evil:
yea i actually had some before but left the can unsealed accidently so they went bad and smelled horrid, im j/w how long they last if kept sealed after use. I actually had my emp eat a large one and s mesa eat a small one intill they went bad