Eleocharis parvula 'Dwarf Hairgrass'

Eleocharis parvula – Dwarf Hairgrass

Eleocharis parvula, commonly known as Dwarf Hairgrass, is a popular foreground plant in aquascaping for creating lush, grass-like carpets. Its fine, bright green leaves form a soft, natural meadow effect in the aquarium, providing excellent coverage for small fish and shrimp. Native to Asia, this adaptable plant thrives in well-lit, nutrient-rich environments.

Lighting

• Moderate to High Lighting: Strong light encourages compact, dense growth. Under low light, Eleocharis parvula grows taller, less dense, and may develop elongated leaves.

Water Parameters

• Temperature: 20–28 °C; stable mid-range temperatures promote steady growth.

• pH: 6.0–7.5, tolerates slightly acidic to neutral water conditions.

• Water Hardness: Soft to moderately hard water (2–12 dGH) is ideal.

Substrate

• Nutrient-Rich Substrate: Aquasoil or fine gravel enriched with nutrients supports healthy root development.

• Depth: 5–7.5 cm (2–3 inches) substrate depth allows proper root anchoring and spreading.

CO₂ and Fertilization

• CO₂: Beneficial for faster growth and denser carpet formation, but not strictly required.

• Fertilization: Liquid fertilizers and root tabs with nitrogen, potassium, and micronutrients support healthy growth.

Growth and Maintenance

• Growth Rate: Slow to moderate; spreads via runners forming new shoots along the substrate.

• Pruning: Trim regularly to maintain a neat, dense carpet and encourage horizontal spreading.

Placement in Aquarium

• Foreground: Ideal for carpeting the front of the aquarium, adding texture and natural habitat for shrimp and small fish.

Propagation

• Runners: Propagates naturally by sending out runners that develop into new plants. Can be separated and replanted to speed coverage.

Water Flow and Circulation

• Moderate Flow: Promotes healthy growth, prevents debris accumulation on leaves, and encourages even nutrient distribution.

Algae Control

• Prevention: Balanced lighting, nutrients, and regular water changes help minimize algae growth on delicate blades.

Compatibility

• Community Tank Friendly: Safe for most peaceful fish and invertebrates. Avoid large or digging fish that may uproot plants.

With proper care, Eleocharis parvula will form a dense, lush green carpet, transforming your aquarium into a vibrant, natural foreground.

Interesting Fact: Dwarf Hairgrass adapts its growth to available light and nutrients—under strong light and CO₂, it forms a thick, compact carpet, while in lower light it grows taller and sparser. Its grass-like appearance also provides shelter for small aquatic creatures, enhancing the ecological balance of the tank.