The biOrb TUBE 15 Aquarium with MCR offers an unobstructed, 360 degree view of its underwater world. This exquisite 4 gallon aquarium is designed with cylindrical contouring and is available in sleek black or white trim. The biOrb TUBE is equipped with multi-color remote controlled lighting that can be lit by any of the sixteen pre-set colors. You can relax as the aquarium gently fades through the entire spectrum of colors or select the day and night setting for a more natural scene. You can also control the brightness, making these controls a joy to use. The biOrb TUBE 15 with MCR LED light uses the same proven filtration system as the rest of the biOrb range. Like all biOrbs, the biOrb TUBE 15 uses ceramic media to provide biological filtration which has a surface area equivalent to the size of a soccer field. Any excess waste is collected and held in a filter cartridge at the base of the biOrb. To maintain your aquarium all you do is simply replace the filter cartridge every four weeks and change a third of the water. Also for your peace of mind, the light and air pump are low voltage. The aquarium itself is made from acrylic which is ten times stronger than glass and backed by a 2 year warranty.