So my gorgeous yellow tang has had this weird bacterial infection for a whole week. His lips are stuck open and are very red. He’s breathing pretty fast too. I have actually had this problem before with another tang, and I treated my whole system with melafix and it went away almost immediately. Ive now been treating him with melafix for over a week and he’s only getting worse. All my other tangs have 0 problems. I don’t know what to do other then what I’m already doing. I cant lose this fish ): I love him to much. Can someone help?