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PlantSnap
Plant Care
Pygmy chain sword
(Helanthium tenellum)
Also Known As
Pygmy chain sword, Little amazon swords, Dwarf amazon sword, Lace leaf sword plant
About This Plant
Helanthium tenellum is a species of aquatic flowering plant in the Alismatales order. It is a small, delicate plant that is commonly used in aquariums. Also known as Echinodorus tenellus, it is a popular plant for aquascaping due to its grass-like appearance and ease of care.
Plant Care Instructions
Outdoor Size Range
Not applicable
Light Requirements
Helanthium tenellum requires moderate to high lighting, around 2-3 watts per gallon of water.
Humidity Needs
Being an aquatic plant, it requires high humidity levels in its environment.
Fertilizing Schedule
Regular fertilization is recommended to ensure healthy growth. A balanced liquid fertilizer can be added to the water once or twice a week.
Pruning Guidelines
Regular pruning is necessary to keep the plant healthy and promote new growth. Dead or yellowing leaves should be removed, and the plant can be trimmed to maintain its size and shape.
Common Pests and Diseases
Helanthium tenellum is generally not prone to pests or diseases. However, it can be susceptible to algae growth if lighting and nutrient levels are not properly balanced.
Indoor Size Range
6-8 inches (15-20 cm)
Watering Schedule
It prefers soft, slightly acidic water with a pH between 6.0 and 7.5. Watering should be done once or twice a week, or as needed to keep the substrate moist.
Temperature Range
It prefers a temperature range of 68-82°F (20-28°C).
Growing Season
It can be grown year-round in an aquarium setting.
Growing Difficulty Level
Helanthium tenellum is an easy plant to grow, making it a popular choice for beginners.
USDA Hardiness Zones
Not applicable
Did You Know?
Helanthium tenellum is known for its ability to absorb nitrates and other pollutants from the water, making it a natural filter for aquariums.
