Vallisneria Gigantea

Plant Profile

• Scientific Name: Vallisneria gigantea
• Common Name: Giant Vallisneria, Giant Eelgrass
• Origin: Native to South and Southeast Asia (India, Myanmar, Thailand, Malaysia)
• Height: 60–150 cm (24–59 inches) — one of the tallest Vallisneria species
• pH: 6.5–8.0 (tolerates a fairly wide range, prefers neutral to slightly alkaline)
• Care: Easy – very hardy and adaptable to various conditions
• Light: Low to Moderate – grows well in low light but taller growth happens with more light
• CO₂: Optional – benefits growth but not required
• Propagation: Runners – spreads by sending out horizontal runners that root and form new plants
• Growth Rate: Moderate to Fast

• Additional Notes:

  • Ideal for background planting due to its tall, ribbon-like leaves.
  • Can provide good hiding spots and cover for fish and invertebrates.
  • Prefers nutrient-rich substrate but tolerates poorer conditions.
  • Can help reduce algae by shading the tank and competing for nutrients.
  • Leaves may curl or become damaged if water conditions fluctuate widely.