ONLY Marine park guides with approved spears are permitted to be spearing them - and they must follow protocol - which DOES NOT INCLUDE FEEDING THEM TO SHARKS OR EELS (or any other perceived predator). This practice by many DM's has conditioned many of our local reef residents and a few of them have become somewhat aggressive, especially with a Lionfish on the spear. After spearing, they should be disposed of on the reef or out on the wall for nature to take its course.
Guests - regardless of how frequent or skilled or special they may be - are NOT permitted to be spearing them. If you don't have a Marine Park credential or some kind of explicit special permission from the marine park, you are not permitted to spear them or even carry a spear. Can you imagine if we gave open season to guests spearing Lionfish?