So, is it o.k. to use an aquarium hood for the top of the tank if it is low light?

I would also like to know more about feeding. There seems to be conflicting information online about how to feed one small bullfrog. Does this sound good? Feeding every other day, mostly crickets, with some waxworms and mealworms once in a while. (How many bugs would I feed in one day?) As he gets larger, then I can add fish and mice once in a while.