Hey everyone I’m just being a little cautious, I did a water change today and right now I have two clowns and a starry blenny in the tank. Everything went well, later on I noticed something on the side of my starry blenny it looks like he scratched himself on a rock or something but there’s also something bubble like moving on his skin, which could be his skin just not really sure however it kind of resembles a fluke. So id just like some opinions and possible options on solutions if it is a disease. I uploaded a photo and video (shows it more clearly I believe). Thank you!