
Sarcophyton glaucum, also known as toadstool leather coral or rough leather coral, is a common species of soft coral found in Phu Quoc Island, especially at Northeast Coral Reef, U-Turn, Shallow Reef and Half-moon Reef. The average depths we find them is 1 – 4m. From our observation of the toadstool leather corals in Phu Quoc, we realize that they bleaching seasonally, turn into white when tiny polyps are absent then turn back into yellow color when polyps extended.