Help introduce juvenile clown to established tank?

[surfisjah]

unfortunately my male regular clown ended up on my floor. I have a new juvenile ready in my quarantine, but everyone chased him when I added him to the big tank. I knew the female would, but now I have the 6 line, bicolor pseudochromis and even the regal chasing the poor little fellow. I returned him to the quarantine tank. Was he about to be supper for the other fish? Should I wait until he's at least as big as the 6 line? Thanks