If you just got it, I would let it settle for a few weeks. The way it looks, it might split itself. If it is healthy, you could split it down the middle and it should heal itself. Xenia is very slimy when cut so it will be messy.
Once xenia get established, it will grow fast as stated above. I put mine near the back glass or overflow so once it moves, I can just use a razor blade to remove it.
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*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,
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