The video shows a close-up of a fish tank with a variety of fish swimming around. The fish are of different sizes and colors, including blue, red, and yellow. The tank is filled with green plants and rocks, creating a natural habitat for the fish. The water is clear, and the lighting is bright, highlighting the vibrant colors of the fish and plants. The fish are seen swimming in different directions, sometimes darting quickly and other times gliding slowly through the water. The plants sway gently with the movement of the water. Overall, the video captures the serene and lively environment of a well-maintained fish tank.