Amazon Sword Amazon Sword is one of those classic aquarium plants that every hobbyist should own at some point. With proper root fertilization, this plant can grow tall and full, reaching heights of up to two feet! Its large green leaves make Amazon Sword an excellent background plant and a great option for filling in empty spaces in your aquascape. Care Tips Scientific Name: Echinodorus amazonicus Common Names: Amazon Sword, Sword Plant Care Level: Easy Light Requirements: Low to medium CO2: Not necessary, but can help promote faster growth Propagation: Adventitious shoots Tank Placement: Background Planting Amazon Sword Amazon Swords are heavy root feeders and benefit from a nutrient-rich substrate or regular use of root tabs. When planting, keep the crown of the plant above the substrate to help prevent rot. All plants may contain snails or snail eggs. We keep them in all of our tanks for the benefits they provide.