Water lettuce

Pistia stratiotes

Water lettuce is a medium, fast-growing plant for medium light (no CO₂ needed). Spot: floating; 2–5.9 in tall.

Care at a glance

Light Low: any basic LED. Medium: a planted-tank LED. Strong: a high-output planted light, usually with CO₂.: Medium light
CO₂ CO₂ is carbon dioxide for growth. "Helps" means the plant grows without it, faster and denser with it.: No CO₂ needed
Growth: Fast
Care: Medium
Where: Floating
Height: 2–5.9 in
Temperature: 72–86°F
pH: 5–8

How to plant it

Float it on the surface; keep it away from strong outflow and thin it out weekly.
Soft leaves: plant-eating fish and snails may eat it.

Also for this spot

Sources: Flowgrow DB: Pistia stratiotes