new and improved mealworm colony ;)

I'm currently doing this same exact setup. Right now, I have about 20 beetle's in a drawer, with about 50-60 pupae waiting to join them. This is my first go at it, so I'm not sure what I'm doing yet, but so far, so good.

I'm interested in trying out the system with s screen on the bottom of the drawer, so that the eggs and baby mealworms fall through to the lower level, but the beetles stay up one level. I've heard that it doesn't work very well, but I don't know if I believe it or not. I think it may just have to be setup perfectly. I'd like to give it a go, but for this time I'm just doing everything manually.

What do you feed your beetles? I've been feeding mine on carrots and pieces of potato.