When you take the number of anemones collected from the wild and compare it to the number that survive in captivity, it becomes overwhelmingly obvious that they are hard to keep. This may be due in great part to poor collection, shipping, and handling, but regardless of the reason, they are generally hard to keep. If you are lucky enough to get a healthy anemone, or able to nurse one back to health, they can be pretty hardy. Many hobbyists fail with anemones because they don't take the needs of the individual species into account when adding them to their tank. Keeping Magnifica in a Haddoni environment isn't going to work out very well. IMHO, to be sucessful with an anemone, we need to research the needs of the individual species, and do our best to provide its needs.