Hey, a friend sent me some clippings of this plant and they have gone wild!! Problem is, I don't know what they are. Anyone hazard a guess? Thanks!!! (It's the tall stalk with pointy leaves @ 1.5 inches, leaves turn slightly red at top of tank where light is. 29g, 17w light, lowlight plants). I thought maybe a rotala, but their stalks look thicker. Flourite substrate, plant tabs.:help: