Echinodorus cordifolius 'Tropica Marble Queen' is a good choice as an aquarium plant because the Marble Queen Radican Sword (as it is more commonly known) can handle many different conditions. Lighting intensities for Echinodorus cordifolius 'Tropica Marble Queen' can vary from low to high with the best color seen at higher intensities. Plant Marble Queen Radican swords in the background areas of your aquarium as they can reach a large size. The highlight of Echinodorus cordifolius 'Tropica Marble Queen' is the large bright green and white splashed leaves it produces.
Marble Queen Radican sword plants are great sword plants for beginners.
You are buying 1 rooted sword that is averaging approx. 14" tall.
Sword plants are bottom feeders so only plant the roots, Not the plant itself (where the green starts) in your substrate. Planting this plant to deep can cause melting. Adding fertilizer tabs a couple inches from the roots is suggested.