The video features a close-up view of a coral reef in an aquarium. The reef is teeming with life, with various types of coral in different shapes and colors. The colors range from bright greens and blues to deep purples and pinks. The coral formations are diverse, with some resembling brains, others like branches, and some like boulders. The water is clear and the lighting accentuates the vivid colors of the coral. There are no fish visible in the video, but the movement of the water suggests the presence of a current. The video does not contain any text or subtitles.