not 100% sure what uth is,but i am gonna asume a buld,and for bulbs i use a blue 60 watt zoo med for my leo,and a 150 watt esu for my uro onthe very top
That's a cute setup you have, I have 3 more 10 gallon tanks being unused but after I move I'm switching to a breeder type rack, but tanks instead of plastic tubs.