The video shows a fish tank with green plants and a wooden structure. The fish, which is the main subject of the video, swims around the tank. The water is clear, and the fish's movements are smooth and graceful. The plants sway gently in the water, adding a sense of tranquility to the scene. The wooden structure provides a natural element to the tank, and the fish interacts with it by swimming close to it. The lighting in the tank highlights the vibrant green of the plants and the sleek body of the fish.