The CBS is already starting to settle down. He has shared the tank with 2 Ocellaris Clowns and a Yellow and
blue tang for sometime and never showed aggression (he was the last addition at this time). The timing of what and when with regard to stocking Marine aquariums makes such a difference.
It is a green mandarin. I was thinking about getting another one to keep him company, if possible (I will need to do my research on this). This is the first mandarin I've ever owned, and do not know a whole lot about them.