Despite their reputation for being very fragile creatures, anemones are pretty resiliant to physical harm. In the wild, they get crushed and torn all the time and they do fine. They just can't take any type of chemical insult (ammonia, nitrite, ect).
Just leave it be, keep your tank parameters in check, watch your pump intakes as it may decide to wander and find a new home so you don't want it sucked up into one.
Keep lights on as it can use the photo energy.
Hope this helps.