Description
With green coloration, tall and thin strands/blades resembling a grass-like appearance, Dwarf Hairgrass (scientific name: Eleocharis parvula) will create a lush field aquascape for your aquarium. It is termed ‘dwarf’ mainly because it grows relatively short compared to other related species. This feature helps it obtain a position in the foreground to midground of aquariums.
On a further note, Dwarf Hairgrass can outcompete other aquatic plants for nutrients and space once established. So you should be careful when considering its plant tank mates. Things go differently when it comes to fish tank mates. It is regarded as an ideal shelter for bottom-dwelling fish thanks to its density. Moreover, as it grows taller, its blade gently slows along with the currents, which adds interest and enjoyment for your fish to live in this lively environment.
At our Splashy Fish tropical fish store, our Dwarf Hairgrass for sale and other aquarium plants for sale are carefully selected and packed with love! Visit us to buy them online or at our aquarium store in Virginia for a wide selection of freshwater fish for sale, betta fish for sale, freshwater shrimp for sale, and aquarium supplies.
Why Choose Dwarf Hairgrass?
Creates a lush green carpet: Perfect for achieving a natural aquascape look.
Fast-spreading & hardy: Great for beginners and experienced aquascapers alike.
Low to medium light tolerant: Grows well in a variety of lighting setups.
Improves water quality: Helps absorb excess nutrients and oxygenate your tank.
Ideal for shrimp and small fish tanks: Provides shelter and grazing areas.
Low maintenance: Minimal trimming needed once established.
How to Plant Dwarf Hairgrass in Your Aquarium
Rinse the plant gently to remove gel or debris before planting.
Separate into small clumps of 4–6 blades using scissors or tweezers.
Plant each clump about ½ inch apart in the substrate to allow space for runners to spread.
Provide consistent lighting and clean water flow to encourage fast carpeting.
Use root tabs or nutrient-rich substrate to promote strong root growth.
Tip: For a denser, faster-growing carpet, use CO₂ injection and maintain moderate to high lighting. Trimming the tips occasionally stimulates horizontal runner growth.
How to Care for Dwarf Hairgrass
pH: 6.5 – 7.8
Temperature: 70–82°F (21–28°C)
Lighting: Moderate to high (25–50 PAR). Strong light helps maintain compact, low growth
CO₂: Optional, but recommended for faster and denser carpeting
Fertilization: Use root tabs or liquid fertilizers rich in nitrogen and iron
Placement: Foreground or carpeting plant in planted aquariums
Dwarf Hairgrass Frequently Asked Questions (FAQs)
Is Dwarf Hairgrass easy to care for?
Yes, Dwarf Hairgrass is an easy-to-care-for aquarium plant, making it a great choice for both beginners and experienced aquascapers. This hardy freshwater carpet plant adapts well to a range of conditions and can thrive without CO₂ in low-tech setups, though it grows faster and denser with added CO₂ and stronger lighting. Once established, Dwarf Hairgrass requires minimal maintenance, just occasional trimming to keep the carpet compact and neat. It’s perfect for anyone looking to create a lush, natural aquarium carpet with little effort.
How quickly does Dwarf Hairgrass grow?
Dwarf Hairgrass grows at a moderate to fast rate, depending on light, nutrients, and CO₂ availability. In optimal conditions with bright light and nutrient-rich substrate, it can begin spreading runners within 2–3 weeks and form a complete green carpet in 4–8 weeks. Without CO₂, growth is slower but steady. To speed up the carpeting process, trim the plant tops after planting. This encourages horizontal runner growth and denser coverage across your aquarium floor.
Does Dwarf Hairgrass stay green all year?
Yes, Dwarf Hairgrass stays green all year when kept under stable aquarium conditions. This evergreen aquarium carpet plant maintains its vibrant color in both low and high light setups, though it appears brighter and more vivid under strong lighting. Consistent fertilization, stable temperature, and clean water ensure the plant remains lush and healthy year-round. Unlike seasonal plants, Eleocharis acicularis is fully aquatic, so it doesn’t experience dormancy, making it an ideal long-term foreground aquarium plant for continuous beauty.
