The video shows a close-up view of three koi fish in a tank. One is predominantly white with large red patches, another is a light yellow-green, and the third one is smaller and gold in color. The orange and white koi is positioned towards the left side of the frame, while the yellow-green one is to its right. The smaller, golden koi is partly obscured behind the larger orange fish. The inside of the tank appears dark, and the front of the tank shows some water stains. Bubbles in the water suggest the presence of an aeration system.