The video shows a close-up of a fish swimming in a fish tank. The fish is black and white and is swimming among green plants. The plants are of different types, including some with long, thin leaves and others with broader leaves. The fish tank appears to be well-maintained, with clear water and no visible debris. The fish moves smoothly through the water, occasionally darting between the plants. The lighting in the tank highlights the vibrant green of the plants and the contrasting colors of the fish.