Fox face and powder brown tang

[Gahamilton]

I have a powder brown tang currently in a tank with 2 clowns, a wrasse and basslet. I am thinking about adding a fox face to the tank. The tank is 4ft by 2 ft so I know it probably is not a good idea to add another tang but I was wondering if I would be able to add a fox face without the tang and fox face trying to kill one another

 

[wellrn2002]

I have a sail fin and a Fiji fox face. They get along well and the tang was there first before I added the Fiji Foxface