So one of my BP have mites so i am going to quarantine. It was suggested to me to put her in a different enclosure, a tub, which i have. treat/quarantine her in that tub for a few days and clean the tank. my question is how do you maintain the heat or warmth in the tub?!?! in the room they are in now i have to use their lights to help keep their tanks warm as it is. is it necessary in a tub though since it is smaller?