He'll be fine in the 75g They are more aggressive in smaller tanks like your 10g ,
in 75g I would do a bunch of smaller fish than add maybe 1 or 2 dwarf angels for the center pieces ,
I for some reason have become a junkie for wrasses both reef safe and not reef safe
it don't bother me they munch on inverts as I replenish every 6 months anyway,
as long as they avoid coral I'm good with them , I am fairly fond of both my red coris wrasses the smaller is orange with white stripes and the larger is about every color of the rainbow also have a lunar wrasse , been looking at a mystery wrasse, I think it's the bold coloring I like so much .
Fish are like lifesavers
They come in different colors