Sick fish?

[Craigdillman]

I bet it's flukes scoop then out and run prazio pro , super common with wrasse specially wild caught ones to have flukes , I usually do it prophylactic in the tank transfer before adding but it works just as good to qt them and treat with that

Google flukes see if that's what I looks like

[Craigdillman]

And I wouldn't worry about wrasse hiding both my wrasses after at hid for 2 and the other one slept in the sand for like 3 days someone said something about they get jet lagged and get all messed up from coming from Indonesia super common for them to hide lots at the start