My Yellow Tang and Powder Blue Surgeon are best of buddys. They were purchased at the same time, quarantined together and introduced into the show tank at the same time. The Powder Blue is a bit larger and the Yellow is pretty much its shadow. Follows the Powder Blue all over, most of the time. It's cool.
Not sayin' Yellow Tangs aren't aggressive. Just, in my case, my Yellow isn't. Mind you, it's a 135g tank with only those two fish, 5 Green Chromis and 2 False Perculas. Maybe that's why. (Tank's 4 months old. More fish to come).
