hmmmm
hmmmm
this is for the babies, not the adults... just an idear
you know, i have actually been thinking of a way that MAYBE we could get some to live past the 'deadly' stage.
why don't we try putting them into a tank (all of em) with a high amount of water flow, and a piece of dead coral (I have this big ole peice of coral i picked up off of a Florida beach when I was ten... lots of holes)
and then treat them like you would corals, feeding a lot of little things, such as zooplankton an phytoplankton, and bbs (baby brine shrimp) and things like that. the high water movement would make force them to stay within their own holes in the rockwork, and bring their food to them until they are big enough to be seperated out.
problems:
keeping them from being sucked up, but maybe if the propeller was ok, they would go right though....
might still eat eachother (they're canabalistic)
pluses:
you would beable to sell a crapload of them, and eventually breed for bigger n brighter ones!!! and we'd all beable to get what we want instead of hoping for that beautiful spearer
oh, otherwise, your replies will be: they will live for a few days, then kill eachother an die