Koran Angel: Reef safe or not?

[uvm-med]

I have had a Koran Angel in my 90 gallon FOWLR for over a year now, and in March (when I find out where I match for Medical Residency) I'm converting it to a full reef, but am fearful of the Koran's changing habits as it grows. I have read that it is NOT reef safe when larger. What does this actually mean? Will it attack inverts or corals or both? Anybody with experience with this out there? Thanks!!

 

[reefkprz]

May eat some soft corals and nip at large Polyped stony corals, zooanthids and clams, also eats sponges. Smaller specimens are less risky.

 

[cveverly]

There is a very good chance he will develop a taste for you corals.