Thanks zemuron, the austrailian scott is the biggest. It would be hard to find a fairy wrasse larger then him. He is the boss. The other ones don't mess with him. The solar is a little larger then the labouti. The labouti doesn't get very many marks on him. The solar gets missing scales, protruding scales, and sometimes torn fins. The aggression is worse then what I see between my triggers and tangs. The only thing that I can think of why they are so aggressive is because we bought them from other peoples tanks. The Scott and Labouti lived together. The person we got the solar from had him for a couple of years as the only fairy wrasse.