Alpha Channel: No, Looped Video: No, Frame Rate: 30, Resolution: 3840x2160, Video Encoding: H.264, File Size: 115.43mb, Number of Clips: 1, Total Clip(s) Length: 0:15, Source Audio: No, Color: Full Color, Setting: Underwater, Pace: Real Time, Composition: Wide Shot, Movement: Lockdown

A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and jellyfish. Most reefs grow best in warm, shallow, clear, sunny and agitated water. They are most commonly found at shallow depths in tropical waters, but deep water and cold water coral reefs exist on smaller scales in other areas. Coral reefs are found in the deep sea away from continental shelves, around oceanic islands and atolls. Fringing barrier platform atoll apron bank patch ribbon habili atlantic microatoll Indian Pacific Ocean seamount guyot cays reef reefs. Heteractis magnifica, also known by the common names magnificent sea anemone or Ritteri anemone, is a species of sea anemone belonging to the Stichodactylidae family native. The magnificent sea anemone is oral disc, the base of the tentacles, and the oral orifice have the same color going from red sea light beige to white. The numerous tentacles exceed. The sea anemone, being a member of the Hexacorallia, usually carries tentacles in multiples of six that are positioned in concentric circles. UHD 4K 3840×2160.