Yep, transfer the beetles to a new tub, the old one had the eggs in it and if you leave them in there too long they'll eat the eggs. I use my bug mix as a substrate/food for everyone (roaches, crix, supers, etc.) I just don't find oatmeal as a complete diet to gutload my bugs with, they'll live on it but eventually your animals are going to be eating them. Here it is, you'll have to scale it down to fit your purposes I get most of it at the feed store.
1 50lb bag chicken laying mash
1 50lb bag wheatbran
1 50lb bag alfalfa pellet
1 50lb bag rolled oats
1 50lb bag 13 grain rolled cereal
1 large box powdered milk
1 bottle brewers yeast
whatever else I've got laying around or is on 'special' when I go to stock up.
I run everything through a commercial coffee grinder to get it to size. Lasts me about a month, don't know that I'd mix up more than that. Fresh veggies on the top for a water supply works and it's what I use for the beetles but for the worms I cover the bedding with a chunk of burlap and then just spray it down daily. For crix and roaches I use a waterer that I make out of old peanut butter jars (kind of off topic lol). Out of 50 worms you might get 40 beetles, those should produce a few thousand worms for you. The white tubs are sterilite and if you go to walmart they're over by the rest of the rubbermaid/sterilite stuff, they're about 8" deep and maybe 12"x10" or so and easy to write dates on the outside. No lids required, they can't get a grip on the walls.
-----
Heart Mountain Herps