"Thread" on my Goniopora

Turkey head · Jun 17, 2017

hello, this "thread like" thing has been on my Goniopora for several days. At first I thought it was a hair and removed it twice. Then I noticed it always came back. When the polyps were retracted at night I shined a light on it and looked for some creature on t but I didn't see anything. I've had it for a little over 3 months and it has been doing well (all my corals have been well). I included a picture of the whole coral to show its health and then the picture with the "thread"

Any ideas what it is?

Dilan Patel · Jun 17, 2017

I believe it is just waste being expelled. My corals do it all the time. usually blows off with the current. From what I have experienced it is nothing to worry about. If i am looking at the right thing.

Turkey head · Jun 17, 2017

Never thought of that. Makes sense. Its the thread like or spider web strand on the left side going at an angle up to the top of the picture.

Dilan Patel · Jun 17, 2017

Then it was what I thought. Nothing to fear Dilan is hear

Mr. Bill · Jun 17, 2017

Looks like the feeding web from a Vermatid snail. Look around for a small, feather-duster-type tube sticking out of a nearby rock. If so, it's still mostly harmless, but may eventually begin irritating your coral into retracting it's tentacles which can affect it's health long-term.

Turkey head · Jun 17, 2017

I thought it might be a vermatid snail. I looked around and didn't see one. I'll keep an eye on it.

Tahoe61 · Jun 17, 2017

Looks like a Alevopora rather Goniopora and a harmless feather duster.

Tahoe61 · Jun 18, 2017

Also I think I see Red Planaria in the first image.

Turkey head · Jun 18, 2017

You seem to be correct. Thanks for the good eye!

Turkey head · Jun 18, 2017

They're not there now. Maybe my six line wrasse made quick work of them. Probably not so lucky

Tahoe61 · Jun 18, 2017

Turkey head said:
They're not there now. Maybe my six line wrasse made quick work of them. Probably not so lucky

With most FW I would agree but you need to be very observant of Red Planaria they can become very invasive, problematic.

Turkey head · Jun 18, 2017

I looked around and they are still there. Flatworm exit, extra carbon and water change sounds like the way to go. Hopefully the infestation hasn't become an infestation yet.