180 gallon FOWLR fish stocking list.

+1 on the Tuskfish, they are a little pricey but they are beautiful. Also as far as the marine betta goes I too have never seen one swimming in the open.

 

I personally would cut out the flashlight fish... They really are a species only tank fish. and do best in groups of themselves...

The Trigger Id cut also with having more smaller peaceful fish.

and On the Achilles and Powder Blue Tang... Make sure you add them at the same time. both are extremely delicate fish, like lots of room and are from the same genus of tangs. So there may be some fighting between the two.