1. Scientific Classification

• Accepted scientific name: Helanthium tenellum

• Older name: Echinodorus tenellus

• Common names:

  • Broad Leaf Chain Sword

  • Dwarf Chain Sword (Broad Leaf)

• Family: Alismataceae

• Origin: North America, Central America, South America

This variety has wider leaves than the narrow-leaf form and creates a short grassy foreground or mid-ground cover.

🌱 Plant Characteristics

Leaves are flat, wider, and slightly longer, giving the aquarium a wild grass meadow look rather than a very fine carpet.

💡 Ideal Aquarium Conditions

• Under high light + CO₂, leaves can develop reddish or bronze tones.

• Under lower light, leaves grow longer and greener.

💧 Nutrient Requirements

This plant is a heavy root feeder.

Best setup:

• Nutrient-rich aquasoil

• Root tabs in sand or gravel

• Liquid fertilizers for micronutrients

Important nutrients:

• Nitrogen (N)

• Iron (Fe)

• Potassium (K)

Without nutrients, growth becomes slow and pale.

🌿 Growth Pattern

Growth happens in 3 stages:

1. Root establishment in substrate

2. Runner formation spreading sideways

3. Daughter plants forming a carpet or patch

Each runner produces new small plants, eventually forming a dense grassy cluster.

✂️ Planting Method (Tissue Culture / Pots)

1. Divide plant into small individual rosettes.

2. Plant each 3–5 cm apart using tweezers.

3. Insert roots deep into substrate.

4. After 2–4 weeks, runners start spreading.

⚠️ Common Problems

1. Melting after planting

• Normal transition from emersed to submerged growth.

2. Long thin leaves

• Caused by low lighting.

3. Yellow or pale leaves

• Nutrient deficiency (usually iron or nitrogen).

4. Slow spread

• Lack of substrate nutrients.

🐠 Aquascaping Use

Placement:

• Foreground (large tanks)

• Midground (nano tanks)

Aquascape styles:

• Nature aquarium

• Jungle style aquascapes

• Natural meadow foreground

Often combined with:

• Eleocharis acicularis

• Micranthemum tweediei

• Glossostigma elatinoides

🌿 Broad Leaf vs Narrow Leaf Difference

✅ Difficulty level: Easy to Moderate
Good for beginner to intermediate aquascapers.