Check out this Thread. It talks about the pan you refer too with a little "how to" for drainage.
https://www.chameleonforums.com/lll-drain-pan-drainage-36941/
Hope this helps!
Most, actually just about all, dont feed them anything. Waxworms for retail sale are typically packaged in some kind of wood shavings. They are kept cold to slow their metabolism in hopes of keeping them alive long enough for the sale.
Ive reared Waxworms myself. I will tell you what, they are...