The video shows a fish tank with various decorations including plants, rocks, and a decorative bridge. The fish, which appears to be a betta fish, is swimming around the tank. The fish has a vibrant coloration with shades of blue, red, and yellow. The tank is well-lit, and the water is clear, allowing for a good view of the fish and its surroundings. The fish moves gracefully through the water, occasionally coming close to the camera.