Acropora??
 

I just got an acropora and it is a brown color from the tank it was in, my question is will it get its color back and about how long should it take? Not sure on ID of this acro or if that should matter.

depends, but in a good system it could take on average of 1 - 4 weeks

It also depends on what color it is. Some are brown, in which case it's already there!