The Amazon Sword (Echinodorus bleheri) is a popular and easy-to-grow aquatic plant that is often used in aquariums. Here are some things you should know about this plant:

Appearance: The Amazon Sword has long, narrow leaves that can grow up to 20 inches in length. The leaves are a bright green color and have a pointed tip.

Care: The Amazon Sword is a hardy plant that can adapt to a wide range of water conditions. It does best in a nutrient-rich substrate and with moderate to high lighting. It also benefits from regular fertilization and CO2 injection.

Placement: The Amazon Sword is a medium to large-sized plant, so it should be placed in the background or midground of your aquarium. It should be given enough space to grow without overcrowding other plants.

Propagation: The Amazon Sword can be propagated by planting the plantlets that grow on the ends of its long stem. These plantlets can be separated from the parent plant and planted elsewhere in your aquarium.

Benefits: The Amazon Sword is not only a beautiful addition to your aquarium, but it also helps to purify the water by absorbing nitrates and other pollutants. It also provides a natural habitat for small fish and invertebrates.

Overall, the Amazon Sword is a great plant for beginners and experienced aquarists alike. With proper care, it can grow quickly and provide a lush and natural look to your aquarium.