The Octagon Aqua Scape Aquarium fits on a desktop but maybe you shouldn`t put it there. The acrylic is so much clearer than glass and the included lighting and plants so captivating the drifting bubbles so mesmerizing you won`t get any work done. (Un less like me it`s your job to write about fish.) Maybe in the cozy den living room or wherever a dazzling relaxing distraction is welcome. This tank comes complete with high capacity filter lighting plants under-gravel filter and air pump so you don` t have to do anything but sit back and wallow in wonder