ok, just let your anemone sit, unless it gets stuck somehow, mine did, it will eventually come out. It takes a few good weeks of low lighting to kill an anemone. Mine has found its place in my small litle wold, however, the tank is in m room, however, the spot he chose is almost impossible for him to attach, so he keeps falling, so i moved him down a notch, to a perfct place. Leave them be(usually)