Well, actually the statement you found isn't that far off from the truth if you keep a clean tank and know what you're doing. I got my first Sebae anenome about 3 years ago in my 75g and I've had nothing but good luck with it. I think the bottom line is that if you do your research, understand what the requirements of the organism are, and provide a healthy tank you should be fine. As far as Sebae's being non-hosting, that's not true at all. The problem I have is that my clowns are whores and not only hang out in the anenome, but also try to hang out in my Frogspawn... very frustrating.