I saw the most adorable funkiest looking yellow cubicus at the LFS, it was about the size of a nickel, and really wanted to get it, but wasn't sure if it's reef safe.
Anyone ever keep these successfully in a reef tank?
You might be able to keep it reefsafe for sometime but once they get larger they will gladly nip at most inverts. They also do get a foot and a half long. Kinda deceiving when the lfs gets them in at the size of a quarter.