I have a couple acans that have a slight pink coloration on some of their skeleton, but not pink like I've seen on some pics of an infection, there is not alot of pink just a little, but they all are healthly looking and open up everyday and come out to feed every night. If it was an infection wouldn't they be showing signs by looking stressed, ex.. not opening or reacting to anything ? Just want to make sure they are not sick, if they are I can treat em for it