Kept one back in the mid-80s (yeah, feeling old) in a 108g FO tank with no live rock (what was that?) and no skimmer (same question). It ate everything I fed to my other fish, including pieces of shrimp, squid & smelts. Had it for almost a year until I sold it when I shut down that tank. Since the age of the Internet, I now have learned how hard these are to keep alive in captivity. Maybe ignorance is bliss after all.
