I think they must be retracted polyps. I thankfully don't see anything scurrying. They are browning out. I thing my lighting may not be right for them. These are test frags to see if I have the right tank for sps. I'm ok if they lose color but keep growing. If they don't grow and start to look sick, I will rehome them. So far, birdsnest does well in my tank, but it looks like these guys don't. The polyps aren't out that much which made me suspect red bugs. I did not dip them.