Are anemones mobile?

Almost all anemones spend their lives attached to one spot on the ocean floor.  They are attached via an adhesive foot called a basal disc that anchors them to a rock, coral, or other secure location.  They can detach themselves and move when necessary and when they do, they move very slowly.  There are a few species that do not attach themselves to the substrate and instead are pelagic, using a gas-filled chamber in the pedal disc to float upside down in the water.