In all honesty I would consider it to be a case by case basis and who your case worker is. My sister did fostering several years ago (and ended up adopting two beautiful little girls in the process!). My wife and I did the classes with her for support, so at one time we were certified foster parents (although we weren't active), but the case workers that she had would NOT allow her foster kids to visit me and my wife's home because we kept snakes (two only balls, a milk, a king and a corn at the time) and two pet rats. My sister's dog, which had bitten several people (and ended up being put down because it bit their child), was okayed by the case worker. Not trying to be a downer, just realistic. Some case workers will be awesome, others will be your worst nightmare. Just be professional, go the extra mile when they interview you and show them EXACTLY how your reptiles are kept, maintained and their potential. If they do ok the reptiles, be prepared to have to lock them up very well.