Well, the sympodium arrived last thursday safe and sound. It's a small frag, under an inch, and not very photogenic. When closed it resembles a wad of chewed bubble gum, albeit baby blue in color. When open it's very pretty, but it's so small at this point that I'd just as soon give it a chance to settle in and put out some more polyps before trying to really get photos of it.
And now the bad news. The 'octopus ink' xenia I picked up from liveaquaria had been slowly declining, even though everything else in the tank has been growing and spreading. When the decline got pronounced enough I could see that it appeared that individual stalks were missing their polyps. At first this was just a couple, but as of this morning at least 90% of it's stalks are missing polyps. I've been watching for anything preying on it for the last few days and was finally rewarded last night by spotting the culprit... a pure white worm, about three inches long and cylindrical (not a flatworm). Possibly it has bristles, but I couldn't see any... it blends into the xenia extremely well.
A search this morning turned up very little information in general, but did find one gentleman who uploaded a video on youtube (a search there for xenia worm should find the video in question) who captured a much larger specimen of what appears to be the same species. Not only did he see similar signs of predation on his xenia, he could actually see xenia polyps in the gut of the worm he captured.
Tonight when I get home I'll try to go worm fishing and see if I can't nab the bugger.