I saw some in the carribean while snorkeling. They were as long as me (about 6 feet) and easily double my weight. They were a nasty lookin fish, but I think if they are going to be in captivity, it should probably be left to the public aquariums.
spectacular gamefish, saw a couple of small specimens in Big Al's once, although they were Indo-Pacific tarpon. must be an impressive system to be able to house even one