Pistia stratiotes "Water lettuce", also known as water lettuce, can be a beautiful addition to your pond. 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 10cm.
4. Growth Rate: Fast.
5. Care Level: Easy.
6. Placement: Floating.
7. Substrate: Not required, as it is a floating plant.
8. Fertilisation: Not required, but can benefit from occasional liquid fertilisers.
9. Pruning: Remove any yellow or decaying leaves regularly.
10. Propagation: Propagate through runners or daughter plants.
11. Water Quality: Perform regular water changes to maintain good water quality.
12. Compatibility: Pistia stratiotes "Water lettuce" is generally compatible with most fish species.
13. CO2 Injection: Not required.
14. Algae Control: Monitor for algae growth and maintain proper balance.