In the video, there is a beautifully decorated fish tank with various types of fish swimming around. The tank is filled with green plants and rocks, creating a natural habitat for the fish. The fish are of different sizes and colors, and they swim around the tank, exploring their surroundings. The water is clear, and the lighting is bright, highlighting the vibrant colors of the fish and the plants. The fish seem to be healthy and active, moving around the tank with ease. The overall scene is peaceful and calming, with the gentle movement of the fish creating a soothing effect.