It should be more greenish in the center with green/ white tips.. Yours appears to be more white in color. Maybe someone else has a better eye. To really be sure you need to take a photo of the base it should be green and compare and contrast to what you find online. Good luck
Just a small update, that Duncan does have a skeletal structure. I got rid of the Majano anemone as best as I could. But found tiny feather dusters in the zoa colony. They dont look too much like hydroids, but I tryed plucking them out as best as I could anyway to play it safe.