After the fire my hermit crabs lived in a 55 gallon storage bin while I was in temporary housing. While not ideal long term it was a great solution to my housing problem. I was able to cut an opening in the lid for my UVB hood and it fit perfectly. A friend donated the Ultra-therm heat mat to me. 🙂 I was not able to set up deep pools. My largest brevimanus molted successfully in this bin as well as several of the smaller crabs. When I was able to set up the 150 gallon tank again I only moved the medium and large crabs in, leaving the littles in the bin a few months longer. The hamster wheel was always in use and should be mandatory if you are using a bin to house your hermit crabs temporarily.