all i know is my sister brought it from our local aquatic centre (all it read was aquatic plant)
anyway shes had it a month or so in a 3ft tank with her mollies guppies n plec.
since having this plant she hasnt added any solutions to the water to help it grow
and lighting is adequate enough for the fish. but she has found that she is having to to constantly trim back
the plant, as it grows rather rapidly. within 4 to 5 days of having this plant it had already grown to the top of her tank
and has since worked its way across the top of the water, the whole length.
i grabbed a cutting as i liked the colours and look of it. i only hope it does as well in my 5ft tank