I have a 180 gal FOWLR and I have a 4" Naso, 4" Sailfin, 4" Hippo, 4" Koran, and a 3" Maroon clown. Can I add anything else to this tank? I like the Haliquin tusks but don't know to much about them or a Emporer Angel.
Halequin's are opportunists use caution.
As for the empreror... no way. It would definately clash with the Koran. My empreror is numero uno in my tank and i've heard likewise with others.