Question,
I would like to add a Tang to my 110 reef. The problem I may have though is that I already have yellow tang that I bought from joshua 5 months ago.

I do have plenty of rock work for hiding but, I don't know if my tang will like the new additions. If I am able to add some tangs should they be the same size or can I get smaller ones? The rule of thumb when I ran FO was make sure they were all the same size.

My tang is not aggressive with my school of Chromis, Clowns, or Goby, will this be different because a Tang is added?

If it is a question of what Tangs I am adding. I would like to add a Hippo Tang and a Powder Blue.