I bought my baby beardie at a pet store about 1 1/2 weeks ago. He started out eating okay but has since stopped eating and is starting to get skinny. I have him in a 40 gal tank and I know I need to get a new UVB light, I had bought a separate fixture and bulb, but the bulb did not fit so I am waiting on a replacement. I believe he may have been over stressed from being handled and bathed too soon, but am not sure and don't know how to correct the problem. I thought maybe the tank is too big for him to get the crickets, so I tried placing him and the crickets in a separate box to eat but he will not eat any of them. What should I try to do?