The anemone managed to free itself. There are bits of tissues left behind on the pump, but fortunately there are no major tear that I can see.
I actually positioned it on top of my highest piece of rock. On that spot I used to have a few SPS frags, which managed to have good polyp extension, so flow and light should be somewhat decent. Knowing that its a magnifica, I moved the SPS frags from my "prime" estate and let the anemone have it.
When the light is on, it tend to shrivel up. And when the light is off, it seems more relaxed. It also seemed to shy away from my current. It floated away once, but I managed to spot it and put it back. This was the second time it floated, this time I wasn't at home. I suppose it really didn't like that spot.
When it was at the store, it was lit by a single strip of fluorescent (not sure T8 or T5), so I guess it needs a while before it can get used to a 250W MH. Now I have it at the lower half of the tank, with a lower flow, it seem to be still too weak to hold on. For tonight, I would turn off the Tunze and see what happens.
I begin to question the suitability of my tank for it, I think I can get someone to buy it quite easily, but not necessary a better home. It is a pity though, I don't think I have seen such a nice specimen around here.