Multiple Dwarf Angels?

[cmustang]

I have a 72bow with one flame angel, two clowns, one neon damsel, one Royal dottyback, one melanurus wrasse and a sailfin blenny in QT no Coral but one anemone. I am planning on getting a sailfin tang and another medium sized fish. I was wondering if I could do another dwarf angel? Maybe a little bigger than the one I have now? Mine is pretty territorial but maybe I can take him out and put him in a net breeder thing and after a week or so when the other dwarf angel is settled down I can let him back in? My flame is about 2-3 inches so if I get one almost full grown would that work?

My question is on the same line with mixing the angels. Now, my tank is a 10ft long by 2ft wide just about 300gallons.I have a pair of clowns, a fox face, a blonde naso tang, salfin , scopas, blue tang, 4 different wrasses, aptisia eating filefish and the flame angel in question. The flame angel has been in the tank for about over a year, so I would love to have the biocolor and coral beauty. I keep seeing people talking about having two females and one male, how would I know that? Any inputs if it could be done? I have an extra 55gallon tank where I could keep one if it doesn’t work but I wouldn’t be able to do much with the extra angel if things don’t work out, that’s why I haven’t pulled the trigger in trying. I am a believer on getting and keeping the fish I get.