I'd still remain on the side of caution - leopards are much more likely to stress with aggression than halichoeres and cirrhilabrus. I have a blue star with 2 other wrasses in a growout nano because of my Jade and Melanomarginatus. Every small move you pull with your tank can set off a major change in the wrasse hierarchy. I was warned about this when I found out my Jade was a transitional male. Every small move and addition of wrasses can set off a giant fight in the hierarchy with aggressive wrasses.