I've put pulsating Xenia in my nano, I acclimated it for about 30 Min. and it was relatively o.k. The next morning the Stalk had shrunk to less than half of its original size and the color changed from a pinkish to a purpleish. The ends are still open but not pulsating, i have it placed near the surface on a rock and the current isn't to strong (I don't think) but the stalk is bending in half. Do i have a problem or is it still acclimating?