n aquarium filled with multiple large fish swimming in the water

n aquarium filled with multiple large fish swimming in the water. The water is a deep blue color and there are some rocks or structures visible on the bottom of the tank. The largest fish in the frame is a mottled black and white, has a white belly, and is characterized by its long, prominent whiskers. It swims closely by the camera. Other fish, that are a solid blueish gray, swim behind it, obscuring the view of the back of the tank. A sign is visible at the top of the aquarium in the background, out of focus.