Mine had 4-5 days of looking just great before going downhill. I guess that's what makes it so tough. I've lost new animals before and chalked it up to shipping, aclimation or disease, but I haven't lost a healthy animal to non-natural causes for many years. It hurts more when your hopes are raised, lol.
Oh well, I've decided my next anemone will be a home-cultured rose. There is a store in the Twin Cities that does great culturing them. I can't see depriving the ocean of another mag. In fact given this experience, I don't think I will ever keep another anemone that doesn't come from "home" stock. I just don't think my occelaris will go into anything else. But who knows, maybe now that they've had the "feel" for it they will.