Speaking from experience< having more than one tang ( Yellow, Sailfin, Leutenant, Purple ) Its Hit and miss, I had also had a kole tang in there and it was crazy when the kole tang was in there. Finally i removed him because everyone els seemed ok with eachother and BAAM everything was good. They still fight a bit from time to time but im happy couse i have my Purple tang and he was the last one added. It also Depends on your tank and if you have the room for them. If you can you should add 2 at ones and try using an acclimation box. The acclimation box really helps.
