Pulsing Xenia not .. pulsing ?

[BT05]

Try a low flow area and I mean *really* low flow. If you have a smaller tank, then try deflecting some of the current away from the xenia using smaller pieces of live rock.

I remember moving my xenia frag to a moderate flow location and it closed up and stopped pulsing like yours did. Then I moved it back to a calmer part of the tank and it pulsed again until late at night. Whether your xenia pulses or not shouldn't be such a big deal right now, it's more important that it opens up regularly.