The video shows a fish tank with various decorations and plants. The fish tank has a large rock on the left side, and a smaller rock on the right side. There is a plant in the middle of the tank, and the bottom is covered with gravel. The fish tank is well-lit, and the water is clear. The fish swim around the tank, exploring the different areas. The fish are of different sizes and colors, and they move gracefully through the water. The video captures the peaceful and calming atmosphere of the fish tank.