A 20 gallon tall tank, at least in the standard configuration, has exactly the same footprint (i.e. floorspace and surface area) as a 10 gallon tank.QUOTE]
No, it does not. the dimensions of a 20 IS larger than a 10. I know this b/c I just replaced a 10 with a 20. I get the measurements, if needed, but the footprint is NOt the same. It's not by alot 3 inches maybe.
