My sebae is attached to a rock, and does not like to be blown around at all. Every time he has been in high/med flow areas, he moves. Of course, this is just my anemones preference. To get mine to stop moving around I bought a clear plastic container, the kind that would attach in a shower for holding things(they have holes all over in them so water can flow in and out) Put some nice
live rock pieces in the container with the anemone and let him attach, wait till he is
very comfortable (2-3 weeks), then with the least amount of trama, move that rock to a spot that is close to the same area. That way it will still have the same flow and light, If you are lucky the anemone will not notice the difference and stay put. This was my experience, of course it doesn't mean it works for everybody. Good Luck!
