All polyps opened after lights came on, but for some reason I get brown lines in my pic when MH are on. As for the matter of size, its 7" across, its next to a 4-5" colt
Looks like my pagoda cup. I had mine almost 4 months. I was told not to touch the fleshy part and to feed a few times a week, incase you didn't know. My favorite coral as of now.