agreed on tangs needing a 6 foot tank, they really do need that much room believe it or not. Kole tangs are very cool too though adn that would be a better fit I think as well.
I know triggers can get kinda feisty, friends iof mine have one that is quite aggressive. I would worry for the clown and the goby.
Cowfish are a no go as they get way too big. :-(
i wish I had better news for ya'
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.