I am a new ball python owner, and I'm a little concerned about my snake. I hope that I am just overreacting but I've noticed that over the past week or so my snakes nostrils have become quite red. It's possible I'm overreacting, he has no other signs of respiratory infection: No mucus or crust around the nose, no mouth breathing, no wheezing or popping while breathing. However if there is something wrong i'd rather catch it fast. My snake Azul is a Blue Lucy and as such is pure white, this makes the red nostrils quite visible. I've already reduced the humidity and changed the substrate entirely, but I don't know what else I can do. I'd appreciate any suggestions or advice on how to further diagnose if this is early stages of a RI or just me being paranoid. Thanks!