help with a new tank

[imnotiger]

I just got a new 100 gal. tall tank. It is 48"x30"x15" (i think on the 15", not sure).
I was wondering if the tank was big enough to have more than one angelfish and more than one butterflyfish and tang. I was also wondering what the biggest fish i could have in this tank with it being only 15" wide. Also with it being a fish only tank what kind of cleaners could i get? Thank you for any help. I have only been doing this for a few months, I also have a 75 gal reef tank that is coming along just swimmingly thanks to the posts on this site.

 

[mr . salty]

I would NOT reccomend more than one tang,angel,or any other fish in that tank...A four foot tank just doesn't have alot of territory for more than one of the same species of fish...Why push your luck????