Would you be able to help me this one? The blue with green spots in the center of the photo is a mystery to me. After looking at photos online, it could be a hollywood green stunner chalice but I am not convinced since chalice don't generally grow fast. However, this one went from 1" diameter to 4" in a year. It is very thin and brittle like a montipora and grows as fast. I have clipped a small piece and placed it in another part of my tank. Not only the small piece is also growing very fast, but after 3 weeks, the main piece has grown back to a point that I can't tell that a piece was removed.


