SO I'm creating a livestock list for a new 180G I'm building. I want to do something that could be really crazy or something really amazing. Along with some clowns and a few others (Goby/Madrian later on), I was wondering if a Yellow, Naso, Hippo, and Powder Blue Tang would be doable. If it could be remotely possible how could I introduce these guys in a way that they wont beat each other up? If it isn't possible what tangs (out of the 4) would be?