Dwarf Hairgrass (Clump) – Aquarium Plant Care & Profile

Dwarf Hairgrass (Eleocharis parvula / Eleocharis acicularis) is one of the most popular carpeting plants in the aquarium hobby. Sold as a clump, it can be divided into smaller portions and spread across the substrate to create a lush, natural green carpet. Its fine, grass-like blades make it perfect for aquascaping in both nano and large aquariums.

🌊 Quick Facts:

• Scientific Name: Eleocharis parvula or E. acicularis (depending on supplier)
• Common Name: Dwarf Hairgrass (Clump)
• Placement: Foreground (carpeting plant)
• Lighting: Medium to high
• CO₂: Recommended for dense, fast carpet growth
• Growth Rate: Moderate to fast under ideal conditions
• Height: 2–6 inches
• Care Level: Easy to moderate

✨ Why Choose Dwarf Hairgrass?

• Creates a natural carpet effect in aquariums
• Provides shelter for shrimp and small fish
• Can be trimmed like a lawn to maintain thickness
• Great for aquascapes such as Iwagumi layouts
• Hardy and adaptable when given proper light and nutrients

💡 Care Tips:

• Plant clumps in small sections across the foreground for faster spreading.
• Use nutrient-rich substrate or root tabs to encourage carpeting.
• Trim regularly to prevent tall growth and keep it dense.
• Works best with stable CO₂ injection and strong lighting for a lush carpet.

❓ Dwarf Hairgrass (Clump) – FAQ

How do you plant Dwarf Hairgrass clumps?
Break the clump into small sections and plant them a few centimeters apart in the substrate. Over time, runners will spread and form a dense carpet.

Does Dwarf Hairgrass need CO₂?
It can grow without CO₂, but for a lush, fast-spreading carpet, supplemental CO₂ is highly recommended. Without it, growth will be slower and taller.

How tall does Dwarf Hairgrass grow?
Typically 2–6 inches, depending on light, nutrients, and trimming. Regular trimming helps maintain a short, lawn-like look.

Where should I place Dwarf Hairgrass in the aquarium?
It’s a foreground plant, perfect for carpeting nano tanks or larger aquascapes like Iwagumi layouts.

Is Dwarf Hairgrass good for shrimp tanks?
Yes. It provides excellent cover and grazing surfaces for shrimp and fry, making it very popular in shrimp aquascapes.

How fast does Dwarf Hairgrass spread?
With high light and CO₂, it spreads quickly through runners. In low-tech setups, growth is slower and may require patience.

Does Dwarf Hairgrass need trimming?
Yes. Regular trimming keeps the carpet dense, prevents shading of lower leaves, and encourages new runner growth.