I've been a lurker for a few months to this site, and what a great site it is. My eyes are kinda gettin old so my wife bought me a magifying glass for small print. Well I got to looking reall close up on my live rock and never knew that I had so much stuff growing in my tank. If I had a good zoom camera I would take some photos, but I don't. This stuff looks like little green polyps coming out of a white hole on the rock. When you shine a flashlight on them they all go back in the hole like a snap. Any ideas?