Help ID this strange growth

[lafirewolf]

Have this strange growth coming from one of my Zoa frags. It’s spreading over my rocks. Looks like blue strings or tubes. https://uploads.tapatalk-cdn.com/20180628/911ebaf8968d7b5f9345fe5aab55bd25.heicAny help would be appreciated.


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[Anemone]

Looks like sponge to me.

Kevin

[lafirewolf]

Anything to worry about? Let it grow or scrub it off?


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[mcgyvr]

Your choice.. Sponges are typically harmless and beneficial...
There are a few cases where the growth has become problematic in that its crowding out corals and taking over.. But thats fairly rare..

IMO leave it and adapt as needed..

[lafirewolf]

Thanks for the feedback. I’ll leave them be and adapt.


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