Howdy,
First, I moved this into the planted tank forum for you, that's the best place for that question.
Second, these plants do not need CO2, I have cultivated them just fine without. You may also want to check out the CO2 discussion in the sticky above.
Third, your title is unfortunate. You may have the story about the kid crying "wolf". Members on this board ask urgent questions about fish emergencies or filter failures. Your question certainly does not qualify as urgent, even though you are possibly very interested. Still, you'll get better answers if you use an appropriate subject line.
HarleyK