Right now I have just one python a and I found a 4ft AP cage that will last a while until he gets too big. I'm currently using a hydrofarm t stat I've gotten from amazon and has seemed to work just fine in the past. With just one snake is it wise to jump up to a herpstat? I understand they are proportional and better overall than the turn on/off method I'm using now. I will be hooking it up to a RHP