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