Thanks for your input.
Milo is crated from 11-7:30 so quite a while. My husband usually gets up every night so I will have to get him to take him out once and see if this helps. ( it seems that sometimes he must poo in the middle of the night - and other times its more like early morning.) It varies.
His cage really isn't too big for him. He is 4 lbs already and he has a small bed and two baby blankets in there with him so he doesn't really have a lot of room to begin with.
Will try using the treats to get them to listen....God knows they love their treats....
thanks again