Yellow Tang in acclimation box

[ChadmRoman]

I’ve had a yellow tang in an acclimation box now for 8 days. I’m debating to add the fish at this point. The first couple days the achiles I have that’s well established non stop circled and attacked the box. Agression is now down but still exists.

At what point should I call it complete and add the yellow to the tank or remove the yellow from the tank?

 

[JGT]

Can you get the Achilles out?