Common Name(s): Hairgrass
Scientific Name: Eleocharis parvula
Visual Description: Eleocharis parvula, commonly known as Dwarf Hairgrass, features fine, needle-like green leaves that grow in dense tufts. Its graceful, arching blades create a lush, carpet-like effect in aquariums, mimicking the look of underwater grasslands.

Growing Conditions

Light Requirements: Moderate to high; bright lighting encourages dense, healthy growth and horizontal spreading.
Water Requirements: Fully submerged conditions; tolerates a wide range of water parameters but prefers soft to moderately hard water.
Temperature Range: 20–28°C (68–82°F)
Humidity Preferences: N/A (fully submerged growth)

Planting & Care

Substrate Preferences: Nutrient-rich substrates like aquasoil promote optimal root development and growth.
Fertilization Needs: Requires moderate fertilization; regular addition of liquid fertilizers and root tabs enhances growth.
Propagation Methods: Spreads through runners; trim and replant runners to expand the carpet.
Pruning/Tidying Up: Trim regularly to maintain the desired height and prevent overgrowth or shading of other plants.

Placement

Aquarium Placement: Ideal for foreground planting; its short, dense growth makes it perfect for creating naturalistic carpets.
Attachment: Plant directly into the substrate.
Spacing Requirements: Space tufts approximately 2–3cm apart to allow spreading and even coverage.

Compatibility

Aquarium Compatibility: Compatible with most freshwater setups, including planted aquariums and shrimp tanks. Safe for fish and invertebrates.
Pest/Disease Resistance: Generally resistant to pests and diseases; good water quality and regular maintenance help prevent algae growth on the leaves.

Special Requirements or Tips

Special Care Instructions: Consistent lighting and CO2 supplementation enhance growth and promote faster carpet formation.
Seasonal Care: Not applicable in controlled aquarium environments.

Ecological Impact

Invasiveness: Not known to be invasive in aquariums but should not be introduced into natural waterways.
Benefit to Wildlife: Provides shelter and spawning grounds for small aquatic animals, enhancing the overall aquarium ecosystem.