Don't get me wrong - I love wrasses. In fact, I get a free pass since my wife loves wrasses as well. I just don't like putting a lid/net over the tank, granted I don't see it anyway. That's tempting to get 2 to try though...
Edit: wait, I forgot -- I do have a tiny Six Line wrasse in the tank for 18mos now. He's still there - saw him yesterday cruising around.