Odd hairs, or sweepers?? Or worse?

[boeingn747]

So I have been noticing these 2 hairs that make a v shape coming out of some of the polyps on some of my sps corals. Mainly birdsnest, cyphastrea, and I have seen it on some montipora. My question is what the heck is it. When I first saw it I assumed that they were sweepers of some kind. However, when I tried doing some research on sweepers on these coral types I don't see anything like this. They are definitely alive because when i touch it they will retract. It's odd that only some corals of the same type do it. I have several birdsnest varieties and only one does it. Only one cyphastrea does it. One monti does it. I am wondering if it is some type of pest or something. Let me know what you think I am looking at. Thanks

 

[CanuckReefer]

Barnacle of some variety???

 

[boeingn747]

Barnacle of some variety???

Are they just filter feeders and not to worry or will they spread? Should I dip the coral? What are your recommendations?

 

[vetteguy53081]

May be a spaghetti worm but no clear view of where these are coming from. Other possibility is multiple spinoid worms

 

[CanuckReefer]

Are they just filter feeders and not to worry or will they spread? Should I dip the coral? What are your recommendations?

If its a barnacle just a filter feeder. Had one in middle of my galaxia for years.
Try and get us a clearer shot if possible. As Vette said maybe spaghetti worm as well...

 

[mdb_talon]

looks like a Spionid worm in that first picture to me. They are not necessarily bad other than can annoy the coral. I leave anything like that in the tank unless it is causing my corals to close up then I get rid of them.