I can't find the "perfect" tank for my desk at work this summer. I've seen several that I like, but there's always some little flaw with them. I want to be able to hang a red sea nano filter on the back (or side). It needs to be 1-2.5 gallons without appearing too "large". I want to keep it small without sacrificing the water volume. For example, the Mini Bow tanks are too "large" because they have the large hood and elevated base. While the standard 2.5g rectangle looks far smaller and still holds the same amount of water. Hex tanks have a tendency to appear larger than they really are. Cubes and rectangles seem to have the best of all worlds. Clip on light would be wonderful, but I can substitute a desk lamp if I need to.