I did it in my 120 but the rockwork gave them places to escape from each other. They displayed a fair amount, but both of mine seemed respectful of each other's space. This is only my experience, so don't go all in without some more feedback.
like the others said you should be fine..my laboutei was a little mean to other wrasses i kept but never wnet after my lineatus..i would add both at the same time if you can..if not use a acclimtion cup it will help cut down on aggression