Amazon Sword Plant Care Guide (Echinodorus Amazonicus)

The Amazon Sword (Echinodorus amazonicus) is one of the most iconic and beloved plants in the freshwater aquarium hobby. Native to the Amazon River basin of South America, this large rosette plant features broad, lance-shaped leaves that can reach impressive sizes, making it the perfect centerpiece for medium to large aquariums. Amazon Swords are renowned for their hardiness, vibrant green color, and dramatic visual impact, providing a lush, jungle-like backdrop in any planted tank. Whether you are setting up a community tank, biotope, or naturalistic aquascape, the Amazon Sword delivers timeless beauty and reliable performance with relatively easy care.

 

Amazon Sword Plant Overview

• Common Name: Amazon Sword

• Scientific Name: Echinodorus amazonicus (also classified as Echinodorus bleheri)

• Origin: Amazon Basin, South America

• Placement: Background, Midground, or Centerpiece

• Maximum Height: 12–20 inches

• Growth Rate: Moderate

• Care Level: Easy

• Lighting Requirements: Medium

• CO2 Requirements: Not required

• Temperature: 72–82°F

• pH Range: 6.5–7.5

The Amazon Sword is part of the broader Echinodorus genus, which includes several closely related species often sold under similar names.

 

Why Amazon Sword Is One of the Best Aquarium Plants

Amazon Sword has been a hobby staple for decades thanks to its impressive size, lush appearance, and ability to thrive in a wide range of conditions. Few plants offer such a dramatic visual impact with such modest care requirements.

Benefits of Amazon Sword include:

• Creates a striking centerpiece in medium to large tanks

• Broad leaves provide cover and visual depth

• Hardy and forgiving of variable water conditions

• Spreads through baby plants on adventitious shoots

• Compatible with most peaceful freshwater species

• Helps absorb nitrates and other excess nutrients

 

Amazon Sword Lighting & CO2 Requirements

Amazon Swords grow well under medium aquarium lighting. They do not require intense light but appreciate consistent, balanced illumination.

For best results:

• Use medium intensity planted tank lighting

• Provide 8–10 hours of daily lighting

• Ensure light reaches the lower portions of the plant

• Pair with consistent root tab fertilization

CO2 injection is not necessary for Amazon Swords, though it does promote faster, denser growth.

 

Without CO2

• Steady, reliable growth

• Suitable for low-tech tanks

• Easy maintenance

With CO2

• Faster leaf production

• Larger, more vibrant leaves

• Improved deep green coloration

 

Best Substrate for Amazon Sword

Amazon Swords develop extensive root systems and are heavy root feeders, making nutrient-rich substrate essential for long-term health.

Recommended substrate types include:

• Aquasoil

• Nutrient-rich planted tank substrate

• Fine gravel with regular root tab supplementation

• Sand with root tabs

A deep substrate bed of at least 3 inches is recommended to accommodate the extensive root system.

 

How to Plant Amazon Sword

To plant Amazon Sword successfully:

1. Bury the roots fully in the substrate

2. Leave the crown (where roots meet leaves) exposed above the substrate

3. Provide adequate space, as the plant grows large

4. Add root tabs near the base at planting

5. Position toward the back or center for best visual impact

A mature Amazon Sword can dominate a tank, so plan placement accordingly.

 

Amazon Sword Maintenance

Amazon Swords require minimal but strategic maintenance to thrive long-term.

Maintenance tips:

• Remove yellowed or damaged leaves at the base

• Replenish root tabs every 1–2 months

• Dose comprehensive liquid fertilizer with iron and trace elements

• Trim oversized leaves to manage tank space

Baby plants form on adventitious shoots and can be separated and replanted to expand your aquascape.

 

Ideal Tank Mates for Amazon Sword

Amazon Swords pair well with most peaceful and semi-aggressive freshwater fish, especially South American species.

Compatible tank mates include:

• Angelfish and Discus

• Tetras, Rasboras, and Hatchetfish

• Corydoras Catfish

• Apistogramma and other dwarf cichlids

• Plecos (in larger tanks)

• Otocinclus

Avoid large herbivorous cichlids, goldfish, and crayfish that may damage the leaves.

 

Common Amazon Sword Problems

Yellow or Translucent Leaves

Indicates iron, nitrogen, or potassium deficiency. Add root tabs and dose comprehensive liquid fertilizer.

Holes in Leaves

Typically a potassium deficiency. Increase potassium dosing or use a complete fertilizer.

Melting Leaves After Introduction

Common when transitioning from emersed (greenhouse-grown) to fully submerged conditions. New submerged leaves will replace the melted ones.

Stunted Growth

Often a result of substrate nutrient depletion. Add root tabs near the plant base.

 

Final Thoughts

The Amazon Sword is one of the most rewarding plants in the freshwater hobby, offering dramatic centerpiece appeal with surprisingly easy care. Its large, lance-shaped leaves create a lush, jungle-like atmosphere that pairs beautifully with South American fish species and naturalistic aquascapes. With proper root nutrition, moderate lighting, and stable water conditions, the Amazon Sword will continue to grow and impress for years, anchoring your aquascape with its timeless beauty.

Looking for a stunning centerpiece plant for your tank? Browse AquaticMotiv's collection of live aquarium plants, Amazon Sword varieties, and aquascaping-ready plants shipped directly to your door.