The Big Polyp Blastomussa Coral is also referred to as a Blastomussa Pineapple Coral. It is often confused with other brain corals and some mushroom corals, somtimes being referred to as the Swollen Brain Coral. It is a large polyp stony (LPS) coral and has many round swollen discs, that when open, resemble a mushroom anemone. It is blue, brown, red, green, or a combination of all of these colors.