The wrasse is now coming out and actively feeding (though the anthias will give It a hard time... note to self: do not QT aggressive eaters with shy fish). Still have not performed the water chase but will do in a couple of hours.
On another note,
@4FordFamily (and others) have mentioned Coppersafe to be more suited to wrasse than Cupramine. My concern si that I have never used it before and do not know what the dosage per gallon should be to get to the desired concentration. The instructions tell you to dose 1 teaspoon per 4 gallons but do not give an indication what concentration will this achieve. I also bought this on eBay so not a clue how long it has been on shelf...