Hi all. I have about a 3 year old purple tang and I recently upgraded to a 6' 125g. I would like to add 2 more tangs together, preferably a desjardini and a chocolate. Would that be ok as a trio or would the aggression be unbalanced because of the 2 zebrasomas? Since I already have the purple and really want a desjardini, the alternative i guess would be purple-desjardini-yellow as ive heard that trio is often successful. Anyone have advice or suggestions?