emperor with corals ?

I have a juv emperor that I had to move into my big tank sooner than I wanted because he ate my anthelia. I had planned on putting some softies in the tank and maybe some mushrooms fragged from my 75g reef. Currently there are only a few button polyps in there and he has left them alone from what I can tell. What can I put in there that he won't, or rather shouldn't eat ?

Oh, another question. I currently have only semi-aggressive fish in the tank except for The Tomato Clown From " you know where". They are a niger. blue throat, yellow tang, banana wrasse, lo, volitan and a sf eel. My LFS has a sailfin tang that is gorgeous and I'd love to add him. Problem is, these guys beat the snot out of a harlequin I bought and I'm afraid that ( due to similar markings..ie..stripes and size) they will do the same to this guy. Is it feasible to add another tang when I already have a yellow? Will the same thing happen as did with the harlequin? They ignored the angel when I put him in but I'm worried about the sailfin.

 

He'll probably chomp on the corals.

 

he will eat the coral definently.2 tangs in a tank depends how big and how much space in there.if there is alot of room you can probably get away with it.just do what i do buy it if it doesnt work out then take him back.

 

I would refrain from purchasing a similar type Tang as you will probably regret it as the end result may be an injured or dead fish through aggression!