Hey everyone! So this is my first post on herpcenter.com or any forum regarding reptiles, so bare with me! So tuesday I bought a normal male baby ball python from LLLreptiles, but I think it's underweight. I don't have a scale, but I will be getting one tomorrow as well as a better hide because I'm going to the New Hampshire reptile expo tomorrow. He breathes pretty heavily as well, I think it might just be stress but Im not sure. He's in a 16 qt tub with a zoo med heat pad and a water bowl on the cool side and newspaper and paper towels as bedding(pictures will be included). I would also like to know what size mice/rats I should be feeding him because he's pretty thin, I believe right now I have hoppers but if that's too big or too small I'd appreciate any recommendations! I tried to feed him but he didn't seem very interested, he looked at it but didn't attempt anything. I tried to feed him on Thursday, and tried again Friday but I don't want to stress him out so I'm not going to try for a couple of days. Also, if the tub is too big or too small I have different sizes and I could always pick some up. Sorry for a lot of pictures, just wanted all of you to get a good look at him! Thank you!