hi guys I have a 180g fowler with a blue face angel and a blue angel. They have been together n the tank for about a month and getting along great. They are both about 4inches in size. I put in my passer angel today that was in qt. He is about the same size as the other two angels. Once in the display, the blue face and blue are constantly chasing him around and beating on him. Is there anything I can do to decrease the agression? I don't want to loose the passed, he is beautiful. I've tried re-aquascaping, keeping the lights off and feeding a lot, but nothing helps. Should I pull out the blue face and blue angels for a certain amount of time then return them to the display one by one? Any advice would be great. Thanks