Yeah, any reference book on SW fishkeeping will warn about lions & triggers. Its a bad deal for the lion; it may take time, but usually the trigger is going to find the lions fins irresistible. I think this mistake stems from the constant idea that lions are aggressive fish. They are not, they will very seldom bother anything they can't swallow whole. The nasty little damsels can get real nippy with lions too. Fortunately, Volitan lions are about the fastest growing fish I know of and should have the damsels for lunch soon, or is this a dwarf lion?