critter id needed

So my daughter found this in the QT tank today. Any idea what it is?

Wish I could post a video as it would show up much more clearer and movements (possibly just water current moving it). I went through the Hitchhiker ID Thread with the various photos and the good & bad ones, but clueless. I’m just wondering if this would be something of concern or just me...

He’s currently in my observation tank. He’s quite small. Less than 3 inches. Was only told he’s some sort of wrasse. Is sharing the tank with a clown tang who couldn’t seem to care less about him being there lol. Thanks for the help.