I'm not sure if he's been fighting or what. All the other fish seem fine. I added a 6 line in my max e170 and they were fine togther for a while. Then the gamma started hiding in a rock but he still came out for food and would buck on the 6 line if the 6 line came close to his rock. I did notice he was swimming upside a lot but then he would go upright. About a week ago he started hanging out on the sand bed under another rock and barely eating. That's when I noticed his face was kinda dark. Today I woke up and he and he was sideways on the sand bed breathing hard and his face is a lot more brown. He was kinda pale too. I quickly threw him in my coral qt. I don't know what to do.