We got our beardie "izzie" a few weeks ago and she(my daughter claims its a girl) is about a year old. We picked up a huge display cabinet I am re-doing but in the meantime we also picked up a 36x18x18 terrarium for her. I am using a Powersun Mercury vapor 160w combo lamp for the day time in the rear larger fixture and a heating element for nighttime in the front one. On the left we have a normal 60w hallogen bulb for the cool side. My question is, should I add another UVB across the back? Ive read the MVB bulbs dont put out enough UVB. We are planning to make custom caves and a basking area but trying to let her get used to what is in there first. Any help is greatly appreciated. I just want the best for her as shes an amazing girl already.