I don;t know the answer to your caging question- my male is kept in a big glass aquarium with sliding glass doors... But with the feeding question, I personaly spend about $20 a week with food, give or take (usualy give). ut I hear that some people spand less, and some spend more. It just depends what your BD likes to eat- mine's not too keen on veggies, even though I was told that "all" adult BD's eat more veggies than crickets, but mine still eats mainly crickets and only some veggies. Just depends on your own individual BD.