I have never had any success with night crawlers. In fact, my frogs act as if they're afraid of them. They'll quickly hop to the other side of the tank and burrow down. Though its really funny to watch a huge frog run from a worm, it doesn't exactly help to feed them. I will definitely look into the Dubai roaches when I get some money(after replacing a couple small heating pads). Thanks for all the help, and I will be searching a few sights for the cheapest price and shipping fees.