Yes...for the most part different species should do fine together! One important aspect to consider with this is to have a large tank! Tangs are grazers and cover large areas in their natural surroundings searching for algal matter!
With a small sized tank, you may have trouble with aggression though nowhere as much so as if you were to keep say multiple Yellow or Purple Tangs or a mixture of each!
Now this being said, I would go out on a limb and say that if you had say a 200gallon tank or larger, you may be able to keep a couple Yellow Tangs together with no ill effect. I know also, having had the experience, first hand, to witness 20 or more Atlantic Blue Tangs schooling together in search of food showing no agressive nature towards another!
Like any fish, there are going to be exceptions to the rule in your favor or negatively so... _________ 125gal.w/Mag9.5 return(dual megaflow)>Mag7 pump Aqua Cev180skimmer.Wave2k Hamilton Reefstar(2)250watthqi(mh)pend.a Yellow, Naso Tang Red Lip Blenny Percula Clown Demoiselles Niger Trigger F. Wrasses Ceriantharia Orn.Shrimp and Stars Hermits Queen Conch asst. snails> Stars Zoos shrooms Montipora Brains Gorgonians Favia Turbinaria(large+small polyp) Acropora Xenia Tridacna (CroceaMaximaSquamosa) Leathers <35+75gal.reef tank as well> 
"IF THE PHONE DOESN'T RING...IT'S ME"  jb  |