So i just got back from out of town for a few days, my friend took care of my veiled for me while i was gone and i came home to my happy healthy chameleon doing fine. he was low on food so i made a trip to local shop to get some super worms, horns and crickets but when i was at the shop i seen some chameleons in the cages that they had recently gotten in not looking to healthy. i go to this pet shop because i know they take care of their animals. so my question is what causes things like mouth rot and other problems with chameleons and how can i prevent my cham from getting any problems or is there no way to ensure things like that don't happen? does it come down to daily care, cleanliness and nutrition? if so im on it but even in the best of conditions can chams get illnesses/diseases because its in their genes like humans? or is that what healthy breeders and good bloodlines ensure?