Patent ID: 7001510

Claim:
A device for accurately removing a specific volume of water from a personal aquarium comprising: a. a base; wherein said base is of a wide cylindrical shape and tapers inward and upward; b. a hollow cylindrical filter; wherein said filter is attached within the section between the base and a volume meter of the base; wherein said filter is of a predetermined length; wherein the diameter of said filter is substantially equivalent to the diameter of the top of the base; wherein the filter has a porosity that excludes common aquarium gravel; c. a suction hose; wherein the hose has a first and second end; the first end extends into the device; the second end extends out of the aquarium to remove the water; wherein the hose has a predetermined length and diameter; d. a plurality of flaps; wherein the flaps are located within a region of the volume counter at a predetermined location; wherein said flaps rotate with a preset friction; wherein the flaps spin in response to the flow of a predetermined volume of water; wherein the flaps are fixedly attached to rotate around an elongated pin; said pins extend outside of the suction tube and are stabilized on the interior walls of the device; e. a volumetric flow display gauge; wherein said gauge is fixedly attached to the exterior of the device; wherein said gauge is attached to said elongated pin; wherein said gauge displays volumetric flow in a desired system of units; wherein said display changes in response to the amount of the spinning motion of the rotating flaps.