So I rescued this BP that wasnt taken care of very well. Its 7 years old about 4 1/2'. The cage looked like it hadnt been cleaned in 6 months or more!!! Feces and shed skin everywhere. She had been feeding it 12 wild mice a month.... Its really thin for a BP. I have had him a week now and its eaten 2 small rats. I would really like to get him him up to a healthy weight, but I dont want to over feed him. Should I just keep feeding him small rats weekly? Are there any health concerns with a snake that has been improperly taken care of for so long?