I am trying to identify my 2 purple fuzzy corals . I ordered them as a purple Stylophora and Fuzzy Lobo Lobophytum. One of them is more stony and doesn’t move in moderate flow(The coral with the crab on it). The other coral moves and sways quite a bit in the flow and its stems shrink and close up at night. Also the fuzzy polyps go away as they shrink.