Wrinkle Coral

About

Wrinkle coral (Psammocora exesa) is a small-polyp stony coral found across a sweeping stretch of the Indo-Pacific, from the waters around Okinawa southward to Australia and eastward all the way to Tahiti. In the wild it occupies a wide depth range, turning up on shallow reef flats just a couple of meters down as well as on deeper reef slopes approaching 50 meters, which hints at its adaptability to varying light conditions. The common name comes from the distinctive wrinkled, convoluted surface texture of the coral's skeleton, which gives colonies a brain-like or crinkled appearance quite different from the smoother Psammocora relatives you might occasionally see in the hobby. Colonies tend to form encrusting or low dome-shaped growth forms and are generally modest in size. In a reef aquarium, this coral sits in the intermediate care category. Not a beginner's first coral, but not particularly demanding either. It appreciates moderate light and a steady, moderate flow to keep its surface clear of detritus without stressing the tissue. It's reef safe and poses no known threat to neighboring corals beyond normal space competition, making it a reasonable choice for mixed reef systems once a keeper has some experience dialing in stable water quality.