Hi, thanks for any advice you can offer. I have a 50 yr old cdt in LA that has upper respiratory illness. Two yrs ago my tortoise moved from the Bay Area to a less warm climate in LA and I think this has made him sick. My new vet just put him on ceftazidine after baytril not working. The vet also said to keep him indoors at 90 degrees. I'm looking for substrate recommendations for indoors, and any other advice. Thanks very much.