10 Best Echinodorus varieties "Amazon sword plant" using for aquarium garden. The genus Echinodorus comprises of more than 30 species. They can be found in South and Central America. It is very popular with makes a great background aquarium. Echinodorus amazonicus Common name: Amazon sword  Description pH range: 6.4 - 7.2 Temperature range: 22-26 C Water hardness: soft-medium hard Propagation : Removing and separating young plantlets from the floral stalk encourage speedy Read more