I had two stems of Cabomba and one of them grew much faster than the other, it grew to the top of the tank. So i cut it back, just above one of the bits where the branches come off, the node or whatever and planted the top in the gravel. This was a few weeks ago and still the Cabomba hasn't grown back, and is still topless. Now the second stem has grown right to the top of the tank, but i don't want to cut it becasue it might not grow back 
What should i do?
Nathan
What should i do?
Nathan