I knew this guy would know!! Maybe I should get a pic of what I have to find out if there're still dermistids in there, or just teeny meal worm bugs. From their original site, about their cleaner crews: "Using science to naturally clean your feeder colony bins is far easier than daily death removals, gnats and weekend cleanings. Our cleaner crews use two species of insects that naturally remove all you uneaten excess chows and consumes any dead you may acquire within your colonies. Our cleaner crews will colonize safely within your Dubia bins and keep them clean and efficient.Each cleaner crew cup contains Dermistid (taxidermy beetles) beetles, larvae and eggs combined with mealworms. The dermistid beetles consume dead insects and small particles of fruit and vegetables. The mealworms consume fragments of ground chows. Our cleaner crews offer maximum cleaning agents to ensure all the waste from your colonies are consumed naturally. Packed with with their natural food in sealed plastic cups."
Too many baby worms for me to look too closely at the excess ones, for what the beetles looked like. Last thing I'd want is to drop them, cuz then I'd NEVER find all the baby worms. I guess I could have just left them in empty baby roach bin, but when I get new roaches, I'd still have to remove them to control how many little bugs I had in there.
The red beetles, were they flour beetles? Silly people never answered my query. I might assume I could have some dermistids left, since I've never found dead anything (except crickets in 1st colony, but they looked like they'd been mummified).