battle wounds

My lights are going out and saw this wound on my chromis? Could it be battle wounds? Been in the tank only a day. I’m not sure if he cut himself or it’s uronema? Sorry if pictures are too blurry. My lights are turning off can’t get any better right now.

Hey guys, apologies for the long post but I can’t find anything on these white bullseye markings on multiple tangs. I have 2 tanks, both have been running 2 years just about. Mixed reef and the fish are thriving. Parameters are ideal. Recently I purchased a convict tang for my bigger 165 gallon...