This sword plant is perhaps the most popular rosette plant sold in the pet trade today. They are royal-looking centerpiece plants that are fairly hardy and take root easily once they adjust to the new tank. I have a 12" sword in a 29 gallon and one almost twice that size (yes, in time they can be tank-busters!) in a 54 gallon tank, and they both do quite well. This species prefers softer water and needs CO2 fertilization to look its best. Old leaves that shed frequently and new "glassy" looking yellowish leaf buds are a sign that it is suffering from bad lighting or iron deficiency and liquid fertilizer should be added. The related Echinodorus bleheri is a related sword (also often called "Amazon") that tolerates slightly harder water.
Common Name: Amazon Sword
Proper Name: Echinodorus amazonicus
Temperature: 20 - 28 C
PH: 6.0 - 7.6
Growth Rate: Slow
Position in Aquascape: Background