He is in a 75 right this moment but we are getting a 180 eventually. He is small right now so he gets to grow a bit in the 75 then move to a bigger tank. I also have a minimalist live rock setup so he has plenty of room to swim.
He is a new tang. If you read the huge thread on RC about them they really aren't that bad a fish once established. we acclimated him for 6 hours the other day and also had the aqurium in darkness that whole day. he was at the store for 3 months so I knew i was getting a healthy fish. He's already eating nori.