The video displays a vibrant underwater scene within an aquarium. A variety of fish, including a blue and yellow fish, a yellow fish, and a red and white striped fish, are seen swimming around the tank. The aquarium is decorated with coral and rocks, creating a natural habitat for the fish. The blue and yellow fish is prominently featured in the foreground, while the other fish swim in the background. The colors of the fish and the coral stand out against the darker background of the aquarium.