What is it

[n3now]

I just got a new Pulsing Xenia and saw this "critter" in the rock that the Xenia is attached to. It's tiny. Any https://vimeo.com/189076281 ideas?

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[mcgyvr]

Spionid worm.. = good

 

[shadowmonster]

That looks more like the Phyllocheatopterus worm outlined in the link below to me. (Figure 10.) The tentacles of a Spionid worm are usually much thinner and don't really have much life to them. The second link has a good picture of what I'm talking about.

http://reefkeeping.com/issues/2003-05/rs/

http://www.coralpedia.com/index.php?module=Gallery2&g2_itemId=559