I just move coral for my flower anemones when they go on walkabout.
I like the flower anemones more than most of my coral so it's not a hard choice.
If I had a dedicated "reef" tank I don't think I would put any anemones in it. No matter how many times someone tells me they don't walk around I will never believe it. I have a rock flower anemone that is in a different place on the sand bed basically everyday. I can't have sand bed corals
I wasn't planning on a anemone. I had a bad string trying to get one for my clowns. But the clowns were messing with my Goni to much so he wouldn't extend. Now the clowns don't mess with Goni as much. Considering cost if there's too much trouble the clowns with the anemone are cheaper then the Goni.