In terms of surgeon growth and behaviour the difference between 50 gallons and 500 gallons is trivial
100% untrue. I can tell you there is a world of difference in the behaviour of tangs going from 75 gallon tanks to 180, and even more difference going from 180 to 550, from personal experience.
I could also repeat numerous anecdotal stories told by countless others who have watched the increase in growth rate and activity levels of tangs with only modest increases in tank size.
It stuns me that you could make a statement like that, Terry, and it would stun me even more if you actually believe it.
Please consult with Scott Michael, Bob Fenner, or Charles Delbeek and see if they agree with this position. I would be curious.
As for the thread starter, the flame angel is totally inappropriate for a new tank, and even less appropriate for a fish only. Also, I have been to many LFS and I don't remember ever seeing a 1 inch yellow tang. You asked the exact same questions a year ago on AL, so I am curious exactly when this tank is going to be set up.....
Brian