The video shows a black fish swimming in the ocean. The fish is seen swimming around the ocean floor, which is covered in rocks and coral. The fish appears to be exploring its surroundings and moving in and out of the coral. The water is clear, and the lighting is natural, suggesting that the video was taken during the day. The fish's movements are smooth and graceful, and it seems to be in a relaxed state. The coral and rocks provide a colorful backdrop to the fish's black body.