I have this idea, I haven't tried it yet but I don't see why it won't work. If you have a turkey baster for sucking out food and what not, squeeze the bulb, stick it in the end of the tube (make sure you get a good seal), and let it suck water into the tube. Kink the tube to keep the water from going back into the tank, and repeat step one over and over and over and over and over and over and over and over and over and over and over and....... till you get a syphon going. If you try it let me know how it works.