I noticed today that my Blue Mushroom Coral has started opening and closing repeatedly. It is also extending its 'foot' on the liverock base. It seems like it is opening and closing almost like a step to get over the obstacles, but not really sure. Yesterday and earlier today it was laid out beautifully across the rock. The baby one that was attached to the rock seems fine and is already looking bigger. Any thoughts on the opening and closing? Or am I just being paranoid?