I order my crickets 500 at a time. I do pretty well at keeping the majority of them alive in a 20 gallon tupperware type storage bin with a waterer and the gutloading feed from petsmart. The problem I'm running into is the bottom of the tub gets nasty with dead crickets and old, I'm guessing, cricket waste(pee mainly?) What can I use on the bottom of the tub or do I need to be using a different type of enclosure? Thanks for any help provided.