here is a quote from the site - obviously because it isn't advertised on here i can't give u the actual link but heres the description:
* 2 canopy fans for cooler operation - extends the life of bulbs and ballast
* Integrated 3 stage filtration and lighting
* Convenient, flip-top canopy makes feeding and cleaning easier
Nano Cube exemplifies high-tech aquarium performance in a miniature environment. Now features 2 canopy fans for cooler operation, as well as longer bulb and ballast life. Also includes the necessary filtration, lighting, and circulation for a thriving mini-biotope. An ideal depth for rock stacking and planting, its rounded glass corners offer seamless panoramic viewing. 3-stage mechanical, chemical, and biological filtration is hidden to provide maximum space for inhabitants. 24-watt compact fluorescent lighting includes splashguard and energy-saving ballast for "flicker free" starts and long-term performance. Flip-top canopy allows easy feeding and cleaning, and a submersible 106 gph pump delivers excellent water circulation. 13-3/4" x 15-3/4" x 14-3/4" high, 12 gallons. Replacement parts and light bulbs sold below.
The Nano Cube makes an ideal desktop aquarium, or a beautiful focal point in any room with the Nano Cube Stands.
Please see "More Information" for specifications.
Please note: If you wish to ship the Nano Cubes by express service, additional shipping charges will apply. Please call our customer service department at *-***-***-**** for shipping quotes. Thank you.