The video shows a fish tank with a variety of fish swimming around. The fish are of different sizes and colors, and they are swimming in and out of the plants in the tank. The plants are green and appear to be healthy. The water in the tank is clear, and there are no visible algae or debris. The fish seem to be happy and active, and there is no sign of any aggression or stress among them. The lighting in the tank is bright, and the overall atmosphere is peaceful and calming.