what is IMHO? I actually changed substrates within the past month. She was in a 5 gallon tank with potting soil mix but she webbed over the top of it, made a burrow and rarely would come out. I thought she needed a little space and the reptile shop put that in the new cage. I will look into those foamariums, they look great. 100 cages? You must never get lonely! Are you a dealer?