I wanted to get some advice/opinions on Tangs. I currently have a 75 gallon FOWLR tank that holds a Foxface, Tomato Clown, Melanarus Wrasse, I believe a Sebea Clown, and a Yellow Tang. I'd like to get a Blue Hippo and possibly a Lieutenant Tang or Sailfin Tang. Will having all these Tangs in a 75 gallon cause aggression towards one another? I know my Yellow Tang went crazy on a Pearlscale Butterfly I used to have until I took the Yellow Tang out for about 5 days and moved the Live Rock around. After that he only chased the Butterfly around every so often. I really like Tangs but I'm not sure if my tank is big enough for more than 1.