Update: I was able to find General Cure locally and had Furan-2 on hand. Going to have to Amazon the kanaplex and PraziPro for the display tank. The wrasse was still alive when I got home, but buried himself while I was dosing the QT.
If he comes back out, or he’s in a spot where you think you could reach to gently coax him out... I’d still try to move him to the QT with the GC and Furan-2 if you can. You can always add the kanaplex in when you get it.