When I add any new fish I start by feeding the fish in the DT. Turn off the lights and add the new fish with the lights out. In the morning the ambient light in the room gives the new fish time to find it's way around the new tank. And the resident Moore time to adjust to the new fish. With FW
fish you can change the landscape to lower aggression. SW
fish you'll need to pull one of the fish for two weeks as them have longer memory's.
alco 1 is using "net the bully" routine. This works only when you can net the bully.
My Tangs are always challenging my foxface and each other but with no or minor damage.