I am surprised that not one person mentioned this fish
I would ask a ? first, which are your wild caught?
Then do you have frontosa?
Then last ?
Which are the three most exclusive an expensive fish here
Dependant upon the answers, I would clean house on the frontosa and calvus compri if they had them since they breed real easy and sell real easy.
If none of the above I would get that which was most expensive since im not having to pay for it at all, if possible i would take 2 male 6 female so I could get a breeding pair
Last resort would be where are your corals and sw since corals can be divided and propagated that way for me corals would be the way to go long standing source of cash