Can you tell us more about the system? Anemone are sensitive creatures that will continue to move around until they are happy. They can be easily stressed if not acclimated to a new system. They need intense lighting to survive, as they are photosynthetic like the trees and grass in your yard. This means they need multiple bulb T5HO, MH
, or powerful LED
lighting to provide the needs for them to survive.
In terms of getting him to attach his foot when going into the tank, turning off the powerheads and then turning them back on later on works pretty well normally.