I think it may be xenia, please offer thoughts

[Bryan68]

I can say they are definitely not that color. But i suppose they could be bleached.

 

[Michael Naegeli]

Trust me those are exactly what I had.... they must be 100% removed before they start their multiplying by the thousands. Will literally make it to every corner of ur tankextremely quickly. I personally would get rid of the whole Frag they came on. Yesterday. They r truly evil lil monsters.

 

[Bryan68]

Ok, i will take your advice. Thank you!

 

[minus9]

It's either clavularia or anthelia, depends on their ability to fully retract? Both derive from a mat, but clavularia will have a tube like structure at the base that allows it to fully retract.

 

[HexaReef]

Do the squeeze at all? Pulsing Xenia? If thats what it is, i like pulsing xenia

 

[Toofattofish]

You can always kill them with fenbendazole, though there might be some collateral damage.

https://www.reef2reef.com/threads/eliminating-blue-clove-polyps-with-fenbendazole.308994/