biOrb Flow 15l Black, a beautifully designed aquarium perfect for beginner or expert fish-keeper! The Flow features Reef One\'s proven filtration system which draws water and waste from the bottom of the aquarium for maximum efficiency. The Flow is made from acrylic rather than glass due to the fact it is approximately 10 times stronger than glass and is noticeably clearer. Acrylic also retains heat almost twice as well as glass. The biorb Flow features a high quality LED light unit with a concave lens for maximum efficiency. The concave lens directs the light to the footprint of the aquarium. LED lamps have a life span of approximately 50,000 hours! What\'s included: Flow Aquarium. LED Light. Pump. Transformer. Ceramic Media. Filter. Water Treatment. Step By Step Instructions. Dimensions: Height: 31.5cm. Width: 20.8cm. Depth: 30cm. Weight (empty): 2.043kg. Weight (full): 18kg. Volume: 15 Litres.