Echinodorus paniculatus 'Amazon sword', also known as Amazon sword, can be a beautiful addition to your aquarium. Here are some care tips:

1. Lighting: Provide moderate to high lighting.
2. Water Parameters: Maintain slightly acidic to neutral water conditions (pH 6.0-7.5) and a temperature range of 18-28°C (65-82°F).
3. Height: Maximum height of 50cm.
4. Growth Rate: Medium.
5. Care Level: Easy.
6. Placement: Centre.
7. Substrate: Use nutrient-rich substrate like aquarium soil mixed with sand.
8. Fertilisation: Regularly fertilise with liquid fertilisers or root tabs.
9. Pruning: Trim the plant regularly to maintain its shape.
10. Propagation: Divide the rhizomes for propagation.
11. Water Quality: Perform regular water changes to maintain good water quality.
12. Compatibility: Echinodorus paniculatus 'Amazon sword' is generally compatible with most fish species.
13. CO2 Injection: Consider CO2 for faster growth.
14. Algae Control: Monitor for algae growth and maintain proper balance.