Alternanthera Bettzickiana Red
Alternanthera Bettzickiana is a popular choice for beginners due to the fact that it's pretty easy to grow. Most red stem plants can prove difficult to get that vibrant red color without providing high CO2 and micronutrients. This plant will keep its vibrant red and pink hues with relative ease, but if nutrients and lighting are severely lacking, the leaves can dull out to an orange hue.
It prefers high nitrates and high phosphates so dosing fertilizers such as UNS Plant Food will help speed up growth and keep coloration at its best. A nutrient-rich substrate is necessary when growing this plant.