This video captures a small, dark-colored fish swimming through the water in an aquarium. The fish is surrounded by vibrant green plants that are swaying gently in the water current. The fish moves gracefully, navigating through the plants with ease. The aquarium appears to be well-maintained, with clear water and a healthy environment for the fish. The lighting in the aquarium highlights the contrast between the dark fish and the bright green plants, creating a visually appealing scene.