Never tried the first plant but the description on the website tells you that it requires high lighting (and therefore it requires CO2 as well). I've tried Amazon Swords and they can do pretty well under medium lighting (mine are growing under 1.73
WPG and without CO2). The first plant probably won't survive under medium lighitng and without CO2, but the second one should

. If you're considering a low-light tank without CO2, these plants are good choices: Java Moss, Java Ferns, and Anubias. Vals, Crypts, and Swords are medium-light plants that can do pretty well too (without CO2).