Didn’t realize there was a second thread for this ID - as mentioned in the other thread, hydroids, probably Myrionema amboinense.
Apparently the urchins Salmacis bicolor and Diadema setosum eat them?
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Didn’t realize there was a second thread for this ID - as mentioned in the other thread, hydroids, probably Myrionema amboinense.
Good guess.Could be yellow parazoanthus.