I would just like to add in my 2 cents. Lions, like KITTY said, are not aggressive, but they are more like ambush hunters. They rely on their large mouths to swallow things whole. Same rules with a grouper. If your animals are larger or AS LARGE, they are fine. But if the lion starts to get bigger, watch out. He may either get used to them and leave them alone or plot against them fro a while until they fit in his mouth, lol. thye are cool fish, and yes, volitans do get big, but your tank probably wouldn't allow it. I would suggest putting in maybe some large tangs, puffer, possibly a grouper, maybe even a larger butterfly. Eels too, theyre good. But you want to watch out for the smaller ones.
