When they get big enough, they also like frozen silversides. Had a big lion fish and a 24" snowflake moray eel living together for years and they both chowed down on silversides. The morays are all near sighted, so I had to use tongs to wave the fish under his nose. The lion fish had no such issues and would gulp down the silversides in a action that I understand is among the fastest in the sea.