idk about that, i would think one would eat the others lol, specifically superworms eating crickets and newly molted roaches. never tried it though, so I could be wrong.
I know it’s a pain, but my experience has been that it’s best to keep them separate. And yes, superworms look pretty savage...luckily my callused landscaper hands are impenetrable to everything but nuclear weapons—and even then, my bet’s on my hands ?