Fish territories

[mr_alberta]

Hi all,

I've just aquired a new fish that, unfortunately, is getting picked on big time by my existing 6-line and PB tang. Anyhow, what I would like to do is remove those 2 fish and introduce the new one, and, at a later time, re-introduce the other two fish.

Now, my question is, how long does it take a fish to forget its territories? A week? 2 weeks? A month? I've already re-aquascaped the rocks a little bit, and I can't really do much more as I don't have that many rocks. Currently my new fish lives in the overflow and calls bits of PVC his home . Any help or incite would be greatly appreciated.

Whoop, I should mention that the new fish is a Yellow Fin Fairy Wrasse.