Your post pretty much scared me.:blueshake: Thank goodness, the location were I planted it is fine.fish_4_all said:Wow, I was told the same thing about their size and it turned into a simple monster. Took up half of my 10 gallon tank and was on it's way to take it over completely if I let it go. I have since removed it and am looking for a smaller one.
The best thing I can tell you about it is to leave it alone once you have it planted. Root tabs directly under the base of the plant helped a ton with massive growth and fast growth. I trimmed mine down to nothing, litterally only the roots and the nubs of the stems and it grew back in less than a month to a much larger size. Lower light might keep it smaller but it IMHO, it is best as a midground to background plant in a large tank, something like a 35-75 gallon and would make a really nice centerpiece in either one.