I collected some of this "invasive species" just over a week ago from the wild and it's seems to be doing great I actually put it in two tanks I took all of my rooted plants in one tank and the clippings in another hoping they would root however I've never done this before I figured it may work shouldn't it?? Also I'm just wondering can I cut the tops off of my plants and put them back in the gravel once they reach the waters surface and start to poke out I have more ground space to cover I just don't want hurt my original plants/clipping??