Hi there, one trick that sometimes works like a charm is to get a one foot long plastic pipe that is about five inches wide and then cut it into three sections,each one approximately four inchs long. Be sure to file the edges smooth so the anemone won't be caught on anything. Next, place these tubes around the bottom of the tank, some on the side and some facing up on top of the sand.Then place the anemone on top of one of the tubes, Anenomes tend not to like having their bases exposed to bright light so it will be able to cling on to the tube and position its base out of the direct lighting. Also turn down the flow so the anenime can move around naturally for a bit while it finds its footing. Good luck too, its a beautiful specimen!