The Red Melon Sword plant (Echinodorus barthii)has rusty green oval shape leaves on long stems. It is known as a tall plant in the aquarium hobby, therefore better suited as a background, mid ground plant that will add nice color to a planted aquarium.
It is an easy plant to maintain, but grows tall in the aquarium. It requires a moderate level of light of 2 to 3 watts per gallon provided by a full spectrum light.
 
This species will propagate is by side shoots, rhizome division or a new plant will form at the end of one of its old leaves.  Just separate the new plant and re-plant. All plants are sensitive to copper; the Red Melon Sword is no exception.  
Be aware about the type of medication you are introducing to the aquarium, especially chemicals to control snails infestation, those are usually copper based and should not be added to a planted aquarium.
 
This plant will benefits from the additions of CO2 and fertilizers.
Purchase Size: Bare Root. 
Optimal Water Conditions: 72-82° F, KH 3-8, pH 6.5-7.5
Hardiness: Easy
Light Needs: Medium
Plant Structure: Rosette
 
Purchase Size: 7"-10"