My yellow tang is attacking its reflection.

[chris124]

My yellow tang is attacking its reflection. I have had him for about a year and a half. The funny thing is that he just started doing it. I;m worried about it because hes been doing it since yesterday nonstop.

 

[ca1ore]

I had an anthias do that to the point where it had a large hematoma on its head. Mine was doing it in just one spot so I put a piece of eggcrate on the outside of the tank to distract it.