Potted Alternanthera reineckii 'Pink'. The pink underside of the leaves of Alternanthera reineckii 'Pink' provides an effective contrast to the many green plants in an aquarium - particularly when planted in groups. Stems becomes 25-50 cm tall. Good light encourages the leaves to turn red. Easy to propagate by nipping off the terminal bud and planting it in the substrate. This also makes the mother plant more bushy, because more side shoots are formed. Alternanthera reineckii 'Pink' originated in South America.