[Carmen]

Hope the leopard wrasse has reappeared. Just wanted to say that I successfully evacuated my sixline for the same reasons. Caught him with a bottle trap. 2L cut the "ribbing" off the top as that seems to scare them away from going in. Put a mirror in the back and add some bait and make sure the opening is very large. Yes they could get out eventually with the hole being larger but I found it increased the chances of them going in.
I did catch every fish but him first at least once but patience won in the end!
Just wouldn't want you to lose any fish over the sixline, mine was quite aggressive as well!
Good Luck.