Adding Wrasses.

[CoppellDavid]

I have a male and female Lubbock wrasse in my 20 gallon QT. They've been in there for 1 week. Both are eating and appear healthy. I'm receiving an order today with 1 male Exquisite wrasse and 1 male McCosker wrasse. Can I add the new shipment to the QT with the Lubbock's pair? Should I move the existing pair to the display tank and add the 2 new guys to the QT? Opinions?
Thanks for your help,
David

 

[evolved]

4 in a 20 is getting dicey; you'll really have to stay on top of water changes.

I wouldn't consider moving them out of QT unless it's been 6 weeks at an absolute minimum.

 

[CoppellDavid]

Evolved, Thanks for the quick response. I change 2.5 gallons weekly. I also bought a tank divider just in case.