The video displays a beautifully decorated aquarium with a variety of plants and fish. The aquarium is filled with clear water and has a dark background. There are several types of plants, including ferns, mosses, and other greenery, that add to the natural look of the tank. The fish are of different sizes and colors, swimming around the plants and rocks. The lighting in the aquarium highlights the vibrant colors of the fish and the lush greenery of the plants.