Hey everyone, I have recently put a yellow tang in my tank and as soon as he got in the tank one of my blue damsels started picking at him and his fins. He's already got a few tears in his top fin and every time I try to catch the damsel he runs behind the rocks. Does anyone have any ideas on how to catch him? I have the lights turned off right now and blankets covering the glass so its completely dark inside the tank. Making sure that he doesn't pick at him. I'm thinking of trying to catch him after its dark for a little but he's still behind the rocks. I really don't want to remove any of my aquascape. Any ideas?