I'm looking for a new thermostat to put in my custom built snake rack (!). The guy woh is building it will set up the heating all ready to go, I just have to supply a thermostat! The one that I have isn't suitable for more than just a simple set up... I'm a little confused after looking at some brands though. The rack will have five tubs. Do I have to get five thermostats? As far as I can tell, they only have one probe. He told me I only needed one, but I don't know which one to get. He recommended a Reptile Basics VE, are any of those suitable for multiple tubs? Thanks!!