The video shows an aquarium with four GloFish, colorful genetically modified fish. There's a green one, a pink one, and two blue ones swimming around. At the bottom of the tank, there's a small treasure chest decoration with a dark opening and a white seashell. The tank is filled with water, and the bottom is covered in small, colorful gravel. A blue light illuminates the tank, and bubbles rise from the top, likely from an aerator.