I've had a blue tang for a couple weeks now and everything seemed fine until the last few days. Recently he has been lethargic, swimming for a few minutes and then laying on the substrate.
Like this...

When he did start to swim he would periodically scratch his right cheek on the rocks. Now it's getting worse and he rarely swims at all and he's developing ich. He still has a good appetite and will eat when I feed but he doesn't move much otherwise. I am not worried about the ich as blue tangs get this when they are stressed but I know it is a symptom of something else and I am not sure what that something is. Other than saying full spectrum anti-biotic...what treatment does he need?
Like this...

When he did start to swim he would periodically scratch his right cheek on the rocks. Now it's getting worse and he rarely swims at all and he's developing ich. He still has a good appetite and will eat when I feed but he doesn't move much otherwise. I am not worried about the ich as blue tangs get this when they are stressed but I know it is a symptom of something else and I am not sure what that something is. Other than saying full spectrum anti-biotic...what treatment does he need?
