I bought my first ball python which was a baby male pastel that weighed 122g. Ever since being in my care, he never ate. He was last fed by the previous owner on 9/5 with a live hopper. I'm guessing this baby only takes live mice because I've been trying to feed it frozen thawed hoppers and it never worked. My ball python lost 22g already and I'm getting very worried about him. I can't find live hoppers anywhere, I'm currently on the search for one but I really can't find any right now. Does petco or petsmart sell live hoppers? How can I get to make him eat a frozen thawed hopper? He hasn't ate for more than 2 weeks

My temps are normally 80f-83f and 88f-92f on the basking spot with a 50%-65% humidity. He lives in a plastic rack.