In the video, we see a stingray and a catfish in an aquarium. The stingray is lying on the bottom of the tank, and the catfish is swimming around it. The stingray has a flat body with a long tail, and the catfish has a long body with a wide mouth. The aquarium is filled with small rocks and plants, creating a natural habitat for the fish. The water is clear, and the lighting is bright, allowing us to see the details of the fish and their surroundings.