The image shows an aquarium with a wooden wall on the left side and a sign on the right side. The sign is written in Japanese and appears to be explaining the contents of the tank. The tank is filled with water and there are two fish swimming in it. The water is a deep blue color and there is a small amount of pebbles at the bottom of the water. The fish are black and appear to be swimming towards the right of the sign. The background is blurred, but it seems to be an indoor space with a concrete floor.