tang help needed

[Swags]

Hi All,
I am just in the process of finishing setting up a 180 gallon tank.... I have questions about tangs. I bought 3 juvenile tangs; mimic, naso, and brushtail (all about 2"). They are all very happy, grazing all day, and getting fat. I have another tang in a 75, I do not know the name, I have spent hours looking for an id and am stumped what type she is... and I bought the 180 for her! ( she is about 5") So my dilema is, how will she react to the juvi's? Will she kick the crap out of them... if thats the case I will remove them first, I really do not want to be in a desperate situation trying to catch a beat up fish, in a 180 with 200 lbs of live rock and corals. I purposely added the small ones first to avoid any aggression, but am now second guessing myself. Any ideas, and thanks in advance!

Cheers,
Phil