In my colony of dragon eye Zoas, there are a bunch of holes that look like dried up polyps from the past. In one of the holes, this thing keeps popping out - looks like a feather duster to clean the house with, with a black pattern on it. Forgive me if the picture is blurry at all - every time I go to take a picture it disappears and then pops back out a few min later. What the heck is this? Is it ok?
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