Introducing fish while there is an aggresive Tang

[niloc16]

i have had some success with always having nori available in the tank. my PB tang is a bastard but iif i keep a constant supply of nori for the first week or 2 he is less aggressive. i have also had some success with putting a mirror up against the tank. then the sailfin will be more po'd with the image because it will be reflecting the same aggressive stance.