A compact cube aquarium and cooling fan set. GEX Fish Tank (7.9 x 7.9 x 7.9 inches (20 x 20 x 20 cm) + Cooling Fan Set Target Goldfish Features: GEX Aquarium "Goldfish Energizing Cube Set 200" and the "Aqua Ray Cool Compact" cooling fan. GEX Goldfish Invigorating Cube Set 200: This is a small aquarium for goldfish. The perfect size for breeding 1-2 fish with 1.2 - 1.6 inches (3 - 4 cm). The width and depth are only 7.9 inches (20 cm) and can be space-saving, making it very convenient. GEX AquaLake Cool Compact: This cooling fan has a compact design that is perfect for preventing water temperature in summer. The cooling power reduces water temperature by approximately 13.5 °F (3.5 °C). The included fixing parts can be attached to a frameless aquarium, or aquariums with frames. With the dedicated lid, you can also use it as a stand-alone model. Can be exhausted if turned upside down. An intermediate switch with good maneuverability. Adapter sold separately.