Update: For all those that got xenia and want more, or those who didn't get any at all... I'm looking to get rid of the rest of my xenia. I'm going to take my fuge a different direction, so I want to give away everything. The remaining xenia colony is spread out on several decent size live rocks (think grapefruit size'ish) that you can just come and grab.
That being said, I have to disclose that there is a lot of aiptasia in my fuge, and on these rocks. This aiptasia is/was intentional as added filtration, and food for the peppermint shrimp in my display. I certainly would not recommend putting rocks with aiptasia directly into your display unless you know what you're doing. They do not seem to bother the xenia whatsoever, and they grow in and amongst each other.
If you are able and willing to deal with the aiptasia, then the rocks with the xenia are all yours. You could even chisel off small pieces to harvest the xenia and leave the pieces with aiptasia in the garbage. Up to you!
If you have any dry rock or clean live rock, I'd be happy to exchange, but that's certainly not necessary.
