With a capacity of 15L the small and perfectly formed baby biOrb has the same filtration system as the other Reef One aquariums and comes with everything you need to set up a safe, stylish and simple to maintain desktop aquarium in a child's bedroom, office or quiet corner of your home. * Safe acrylic bowl - 10 times stronger and clearer than glass. * Safe 12V - electrical system, very safe for children. * Simple 5 stage filter - keeps water clean and crystal clear. * Easy to maintain - via the quickly replaceable filter cartridge. * Halogen light - concealed in lid with easy to replace spare bulb. * Full instructions - included with food and water treatment. * Compact size - ideal for apartments, bedrooms & offices.