Lionfish are cool... eh!!
A lot of people will tell you not to feed live fish, and there are a lot of good reasons for that, but I'll let them tell you.
Having said that, I'll say that I do feed live fish, BUT NOT ALL THE TIME. They need a varied diet with a lot more nutrition than feeder fish provide.
Frozen Krill (thawed) and squid chunks the kind that are "enriched"make up the bulk of my fish' diet.I also "soak them" in Selcon,Zoe and or Multi-vit befor feeding.
But throwing in a live fish from time to time is why i got into aggressive.
What I do is try to "fatten them up" or "engorge" them with enriched seafood flakes,and the Selcon/zoe/vitamins while I acclimate them to the salt/temp/ph in a small bowl befor I "put them in coach"
However you can get quite an addrenalin rush (as I've learned on this board) by "hand feeding" your Lion pieces of Krill
You should try it!!
disclaimer
pinions may vary