Size:6-Gallon Offering a combination of modern architectural detail and a fully functional underwater environment, the 6-gallon Cosmo aquarium kit from KollerCraft also features multi-color LED lighting effects. A unique, attractive enhancement to any environment, the cylindrical Cosmo has a resin base and top with a contemporary silver design. The Superclean 10 internal power filter cleans and purifies the tank at a rate of 45 gallons per hour. The research-grade Bio-Chem Zorb 10 resin-carbon filter cartridge removes organic aquarium pollutant (including colors, odors, heavy metals, and toxic gases). The full hood's LED lighting offers four colors (blue, red, green and white), and the energy efficient LED lighting brightly illuminates the tank's inhabitants without the cost and heat transference of other conventional aquarium lighting. Constructed of crystal clear, impact-resistant acrylic, this aquarium is as safe for your fish as glass aquariums, and its seamless fabrication eliminates the risk of leaks associated with aquariums that have glued seams.