:happyfish Hi, yes I have known fish to die because of lions. Accidents happen like anything. I had a racoon butterly fish full size, beautiful fish! The racoon got startled by whatever and so did the lion and he poked those spines forward and they colided accidentaly. The next morning he was dead.
Accidents happen even with fish. The volitan didn't mean to he just got startled by whatever, a fish, his refelction, whatever. In general lionfish are peacable fish, and all my fish sleep together at night with the lion, sometimes on top of him. He just lays down his spines. Hope this was of some help. :happyfish