Hi, really nice gigantea, the blue color is fantastic. I have had mine for about 3+ years, and it likes to bury the foot in the crevices of the rock. Mine sits on a bunch of live rock and its foot is hidden, and the folds of the anemone open over the rocks - no rocks with jagged edges or sharp corners, mostly smooth rocks. It has a diameter of about 16" when it is fully open, and I have a vortech blasting it with current. I can't tell from the picture, but it looks like your anemone is on a rock or two on the sand. If that is the case, I would recommend getting more rock and allowing the foot to hide. My .02, best of luck with that beautiful anemone!