Yes, boss..
That doesn't necessarily mean with aggression. That could also mean territory without dispute.. my Achilles had issues with a Yellow half its size. Doesn't always mean the fish has to be the boss, its just my general experience with the Genus.
Hard for a little Powder blue to go against a decent sized Purple especially if the purple was there to begin with.. Obviously size of the tank, rockwork and feeding play a factor as well.
Calm down there buddy, you sound all defensive...
In my experience/opinion my Powder is boss of nothing.... my tank is 72" long and the powder was there before the purple...
In fact before the Tangs the Majestic angel was most definitely the boss and would chase the blue face all over and pin it in a corner.
Then i got the powder blue in bad shape.
then the Purple tang
The purple swims the entire length all day long and she tried to be the boss of everyone and the angels were not having it...
She has ONLY established her dominance on the Powder blue...
It looks like an older brother little brother scenario... The Purple bosses the Powder and the Powder has no one to boss but the blenny...
Both Tangs will try to chase and or push the angels here and there and the Angels both will quickly turn and face off with them and the tangs back off....
Stock
5" Purple Tang
3.25" Powder blue
3.5" Blue face angel adult
3.75" Majestic Angel adult
1.5" Hippo tang - she hides alot but when she is out, she holds her own as well, doesnt run from no one.
Paired Wyoming white clowns
Paired Nearly naked clowns
small yellow watchman
3.5" Lawnmower Blenny