Hi. We have a fab foxface about 7in who is like our yellow tangs shadow and best mate. We introduced a 3in hippo (blue) tang and 3in blonde naso some time ago. Our yellow is the boss but is quite mellow for his type and won’t do more than he has to to keep control. The fox went nuts When the two other tangs went in. So much that the naso didn’t make it. The hippo wasn’t too bothered and has since eaten so much he’s now 5in. We decided to try naso again with a 5in and for the first 2 days it wasn’t so bad. But then the fox was relentless and we had to take him out as the naso was near death. Couple days later he is now yellows shadow. Anyone had this before? The fox is really bad tempered and even tried bullying the yellow for a few days til yellow gave him a beating. Yellow is about same size as fox. Fox also had all the fish jumpy cos he would dart about for no reason