Water Lettuce

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Say hello to Water Lettuce, the nutrient-nabbing hero of your aquatic space! This green marvel isn't just a pretty face; it's your secret weapon against the algae invasion. Perfect for ponds or grand aquariums, Water Lettuce is like the garden guardian your water ecosystem deserves.

Algae Defender: Here's the pro tip: let this plant work its magic by absorbing excess nutrients, keeping those pesky algae at bay. It's like having a green knight defending your aquatic kingdom!

Divine Care for the Royalty: But, and there's always a but, make sure you treat Water Lettuce like the royalty it is. Keep the tops of its leaves dry—yes, it's a diva in that sense. If they're constantly wet, well, let's just say Water Lettuce won't be a happy camper. So, a little space to air out those leaves is the key to keeping this green superstar thriving.

Partner in the Fight: In the world of aquatic flora, Water Lettuce isn't just a leafy delight; it's your partner in the fight against algae tyranny. Give it the care it deserves, and watch your pond or aquarium transform into a lush, algae-free oasis.


  • Water lettuce forms dense clumps of bright green leaves clustered in rosettes on the water's surface. These leaves resemble lettuce heads, hence the common name.
  • Leaves are typically 4-6 inches long, with prominent ribs, parallel veins, and scalloped edges. They boast a velvety texture due to tiny hairs covering their surface.
  • Unlike most aquatic plants, water lettuce lacks a true stem. Instead, it has long, feathery roots dangling beneath the water surface, often exceeding 2 feet in length. These roots absorb nutrients and provide anchorage.
  • While not showy, water lettuce produces small, white or pale green flowers hidden amongst the leaves, typically blooming in late summer or early fall.

Adaptability and Care:

  • Water lettuce thrives in warm, tropical climates with water temperatures between 70-80°F. It is considered a perennial in zones 9-11 and usually grown as an annual in colder regions.
  • It prefers calm, still waters and doesn't do well in areas with strong currents or waterfalls.
  • While tolerant of low to moderate lighting, brighter light encourages faster growth and denser foliage.
  • Water lettuce is relatively easy to care for and doesn't require special soil or fertilizers. Regular removal of excess leaves is recommended to prevent overcrowding and maintain water quality.


  • Water lettuce adds a unique tropical touch to ponds and aquariums with its distinctive foliage and floating structure.
  • Provides shade and shelter for fish, shrimp, and other aquatic creatures.
  • Its long roots help absorb excess nutrients from the water, preventing algae growth and improving water quality.
  • Can be used as a natural filter in ponds and aquascapes.

Ecological Significance: Water lettuce plays a crucial role in tropical ecosystems, providing habitat and food for various organisms. However, it can become invasive in some regions, forming dense mats that clog waterways and disrupt native ecosystems. Responsible management is essential to prevent negative impacts.

Best Roommates:

  • Amazon Sword (Background)
  • Java Fern (Midground to background)
  • Anubias Barteri (Midground)
  • Vallisneria (Background)
  • Hornwort (Background)


Care Level: Easy

Lighting Requirement: Medium

Co2: Not Needed

Growth Rate: Medium

Tank Placement: Floating


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