If you get it off of the snail, I would suggest turning off all pumps and power heads, clear an area on the sand bed so you have a spot a little larger than the anemone right next to some rocks as a wall, place it's foot on the bottom glass area that you cleaned. It will attach to the glass fairly quickly. Wait about 15 to 20 minutes then turn on the system again and you should have a happy anemone in the same spot for quite a long time.mjust make sure he isn't in a high flow zone. That is how I have kept my anemones from traveling. Except for one rogue Sabae. Hope This helps.