OK I gave Wrex a bath today and while he was soaking he defecated but there was more than just poo. There was lots of roach shells as well. I fed him a lil over an hour before the bath and I made sure all of them were a lil smaller than the gap between the eyes. My brother got him a UVB without telling me (its his lizard im just getting Wrex on his feet) and its some desert UVB bulb from the local pet store. Could it be the light or did he really have an impaction?