I have a farely large amazon sword plant in one of my larger planted aquariums that I would like to reproduce for my goldfish tank. I think that it would survive the 3 hungry mouths in that tank and flourish. The tank has enough light (2 wpg) since I've propogated valisneria to that tank (very easy since it likes to send out runners so I just cut the runners and planted the baby plant into the tank). What do I need to do to propogate this amazon swordplant?