when i first put crickets in he ran around a lot but never ate them, I gave it a half hour then took them out. Changing the lighting is next on my list but I 20 dollars till I get paid so his lighting will have to wait. I'm aware the wax worms are mainly fat but when it comes to him not eating and dieing and just having a fatty diet for the time being I thing the second one is better. I think I will try that but if I do a smaller tub wouldn't there be a good chance they'll get out?