Key Features 15L (4 Gal) Black Fish Tank biOrb Life. Standard LED Lighting Includes Biological System, and an Air Pump with Air Stone + 50W Heater Pack Made from Acrylic (10x stronger than glass) Low Voltage LED Lighting. Made from Acrylic (10x Stronger than Glass) The biOrb Life 15 Litre Aquarium is a compact but very practical choice for housing small temperate fish in style. Featuring a curved design and including energy efficient components, the biOrb Life 15 Litre is the perfect choice of fish tank for any fish enthusiast. With a built in biological filtration unit and low voltage LED lighting, the biOrb Life 15 Litre provides everything needed to quickly setup and maintain your aquarium. The air stone and air pump (included) provide oxygen to the aquarium through aerating the water and creating movement inside of the tank. The LED Light unit allows you to enjoy viewing your fish during the day and at night, and features a curved underside which is designed to prevent moisture