The enclosure is 7'x5'. I tend to avoid feeding crickets though because of how the cage is setup most of the crickets are never eaten. The substrate is dirt on the bottom half, and the top half is that coconut husk stuff for cutting down on the total weight of the cage. My experience with crickets is that they tend to hide under the chips and many die before they are found to be eaten. With superworms he will eat them out of a bowl.

As for the crayfish/shrimp idea, this is my first time hearing that suggestion. What would I be looking for with something like that? Don't really even know what to ask.... Are there special frozen crayfish/shrimp I can buy somewhere online, or are you talking like grocery store shrimp? lol might be a dumb question...