Is the spot he is in a relatively high flow area ? ... what I noticed with that dude was he did not particularily like high flow ... not sure why as most anemones like a bit of flow ? ... dont worry too much about the eating as the clowns I am sure are looking after him ( I hope ) ... if he decides to go on a walkabout it is prolly due to too much flow ... either that or he just wants to stretch that foot out for a bit
Cheers