The video shows a vibrant aquarium with several small fish swimming around. The fish have a combination of red and blue colors on their bodies, with a mix of both colors on their tails. They are seen swimming in and out of the frame, with some fish moving closer to the camera and others moving away. The aquarium is decorated with green plants that have long, slender leaves, and there are also some brown branches visible. The substrate of the aquarium appears to be a light brown color, possibly sand or fine gravel. The water is clear, and the lighting in the aquarium highlights the colors of the fish and plants.