I have seen, in the past, in my display tank, spider web-like "sweeper tentacles" being slowly pulled back in to a tiny hole in a rock. It seemed to be gathering bits of things floating in the water that had stuck to its "web". I haven't seen that for some months, until today. Something had made numerous webs of this - quite a lot, actually - and I don't know where it was coming from. I had bought a frag rack of zoas a couple of months ago that had something on it that would regularly extend a sweeper, but never investigated what it was. Anyone have any thoughts? I wonder what made whatever it is decide to do all of this today. Thanks!
I did not think to take pictures.
David
I did not think to take pictures.
David