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Title
Pose second Beautiful white hard coral in the darkness. #293513858
Description
Hard corals can form limestone skeletons because they come from calcium carbonate. The limestone skeletons will form reefs after being deposited under the polyps. The characteristics of hard corals are that they do not move, have a rough surface, and have a hard structure. The number of tentacles on hard polyps is more than 8. Usually there are 24 of them.