The video shows a close-up of a fish tank with green plants and a yellow fish swimming around. The fish is the only visible creature in the tank, and it moves around the plants, occasionally hiding behind them. The plants are lush and vibrant, with different shades of green, and they sway gently in the water. The fish appears to be a small, tropical species, and it moves smoothly through the water. The tank itself is not visible, but the water is clear, and the lighting highlights the colors of the fish and plants.