Chain Sword (Helanthium tenellum)

Narrow Leaf Chain Sword is a low-growing rosette plant with long, narrow green leaves that arch outward across the substrate. It spreads by runners, gradually forming a dense chain of plantlets that works well as a foreground or low midground planting.

It grows best in moderate light with a nutrient-rich substrate or regular root tabs. CO₂ is not required, though it can encourage faster, more compact growth. Once established, it is an effective choice for creating a grassy, natural-looking carpet.

Care level: Easy to moderate
Lighting: Moderate
Placement: Foreground to low midground
Growth habit: Rosette with runners
CO₂: Optional
Propagation: Runners
Best feature: Narrow arching leaves that spread into a dense chain-like carpet