would a fake aquiarum do the same job as a real one??? I've seen ones that shoot bubbles up and move the fish. I want to try it out . I live in an apartment and I can on;y have one pet, and I don't know it he counts fish or not. so instead on risking losing my apartment and/or kitty, I want to try out the fake ones. I checked out walmart, but I couldn't find any there. does ayone know whre to get one??