I have a female green anole in a 12x18x18 ExoTerra vertical terrarium. I use a compact UVB (I think it's the ReptiSun 5.0) in the proprietary mini-reflector that is designed to be used with this tank, and a 25W incandescent tubular bulb in another mini-reflector on top of the tank. I dust her crickets twice a week with Reptivite w/o Vitamin D and ReptiCalcium with Vitamin D. Very recently, she has a little reddish "shelf" on either side of her lower jaw, although she looks otherwise healthy. is this MBD? Is there a problem with the compact UVB bulbs? How often should they be replaced?