The video shows a close-up view of a fish swimming in a tank filled with green plants. The fish is moving around the plants, and the water is clear. The plants are of different types, some with long leaves and others with short, bushy leaves. The fish is small and seems to be a tropical species. The tank appears to be well-maintained, with no visible algae or debris. The lighting in the tank highlights the vibrant green color of the plants and the shiny scales of the fish.