Description
Helanthium tenellum (Chain Sword) live plants are native to Central and South America and are a popular, easy-to-care-for foreground plant. This hardy species is suitable for both beginner and experienced aquarists. As the name “chain sword” suggests, Helanthium tenellum readily propagates by sending out runners, forming a natural carpet effect across the aquarium floor.
Features
Narrow, grass-like bright green leaves
Compact growth, typically reaching 5–15cm in height
Strong, adaptable root system that benefits from root zone fertilisers
Readily propagates in the aquarium by producing runners, forming chains of new plants
Scientific Name
Helanthium tenellum
Difficulty
Easy to keep.
Placement
Foreground placement in the aquarium. Helanthium tenellum is ideal for creating a low, natural carpet and prefers open areas with good light penetration.
Growth Rate
Moderate growth rate. Chain Swords are root feeders and will benefit from a nutrient-rich substrate. Growth can be encouraged with higher lighting and CO₂ supplementation, though CO₂ is not essential. New plantlets can be separated from runners and replanted as desired.
Lighting
Moderate to high lighting requirements. Under higher light, the plant will remain shorter and spread more densely across the substrate.
