I think I remember seen divers teaching sharks and groupers that lionfish could also be their prey and they started following divers for free snacks, groupers would also closely follow divers like a dog while they were hunting them in tight spaces in corals.

Divers also ended up using longer spears as it could end up being dangerous for them when compared to the shorter ones used earlier

Perhaps they could also teach some local predators with the same method?

edit: it was groupers, not eels:

The LONG-TERM Effects of Feeding Lionfish to Sharks and Groupers on the Reefs