Amazon Sword Care Guide

Quick Answer

Amazon Sword care is straightforward: these plants are large, attractive freshwater aquarium plants that are easy to grow when given enough light and nutrients. They should be planted in the substrate, receive root fertilizer, and have enough space to reach their full size.

At a Glance

Scientific Name: Echinodorus species

Common Name: Amazon Sword

Difficulty: Easy

Growth Rate: Moderate

Lighting: Moderate

CO₂ Required: No

Placement: Midground or Background

Propagation: Runners and daughter plants

Typical Height: 12–24 inches, depending on the variety

What Is an Amazon Sword Plant?

The Amazon Sword is one of the most recognizable freshwater aquarium plants.

It produces long, broad green leaves that grow upward from a central base. Because of its size and shape, it is often used as a centerpiece or background plant.

Amazon Swords are popular with beginners because they are hardy and do not require an advanced planted-tank setup.

Why Amazon Swords Are Good for Beginners

Amazon Sword plants are popular because they:

Are relatively easy to grow
Do not require added CO₂
Create excellent cover for fish
Provide a natural appearance
Work well as centerpiece plants
Can grow in many freshwater aquariums

They are especially useful in medium and large tanks.

Aquarium Size

Amazon Swords can become large plants.

A minimum aquarium size of approximately:

20 gallons

is usually best for most varieties.

Larger aquariums provide more room for the leaves and roots to spread.

Small Amazon Sword varieties may work in smaller tanks, but full-sized plants can quickly become crowded.

Lighting Requirements

Amazon Sword plants grow best under moderate aquarium lighting.

A lighting schedule of:

6 to 8 hours per day

is usually sufficient.

Too little light may cause:

Slow growth
Pale leaves
Thin leaves
Weak new growth

Too much light can encourage algae.

A timer helps keep the lighting schedule consistent.

Water Parameters

Amazon Swords tolerate a fairly wide range of freshwater conditions.

Temperature:

72–82°F

pH:

6.5–7.8

Water Hardness:

Soft to moderately hard water

Stable water conditions are more important than reaching one exact number.

Avoid sudden changes in temperature or water chemistry.

Substrate Requirements

Amazon Swords are heavy root feeders.

They grow best in:

Aquarium soil
Nutrient-rich planted substrate
Fine gravel
Sand with root tabs

Their roots can grow deep and spread widely through the substrate.

A substrate depth of approximately:

2 to 3 inches

gives the roots enough room to develop.

How to Plant an Amazon Sword

Remove the plant from its pot and gently rinse away any packing material.

Then:

Trim badly damaged roots if necessary.
Make a hole in the substrate.
Place the roots into the hole.
Cover the roots with substrate.
Keep the crown above the substrate.

The crown is the area where the leaves and roots meet.

Do not bury the crown deeply because this may cause rot.

Fertilizer Needs

Amazon Swords usually need more nutrients than slow-growing plants such as Java Fern or Anubias.

They benefit from:

Root tabs
Nutrient-rich substrate
Liquid aquarium fertilizer
Regular fish waste in an established aquarium

Root tabs are especially useful when the plant is growing in plain gravel or sand.

Place a root tab near the base of the plant according to the product directions.

Does an Amazon Sword Need CO₂?

No.

Amazon Sword plants can grow well without added carbon dioxide.

CO₂ may increase growth and help produce larger leaves, but it is not necessary for a beginner aquarium.

Good lighting and proper root nutrition are usually more important.

Growth Rate

Amazon Swords usually grow at a moderate rate.

Growth depends on:

Lighting
Root nutrients
Water stability
Aquarium temperature
Plant variety

New leaves usually grow from the center of the plant.

Healthy new leaves are one of the best signs that the plant is doing well.

How Large Do Amazon Swords Grow?

Many Amazon Sword plants grow:

12 to 24 inches tall

Some varieties may grow even larger.

Their leaves can also spread outward and shade nearby plants.

Before planting one, make sure the aquarium has enough height and open space.

How to Propagate Amazon Swords

Amazon Swords commonly reproduce by sending out long runners.

Small daughter plants develop along these runners.

To propagate them:

Wait until the baby plant has several leaves.
Allow it to develop visible roots.
Cut the runner between the parent and the daughter plant.
Plant the daughter plant in the substrate.
Keep its crown above the substrate.

Do not remove the daughter plant too early.

A well-developed root system gives it a better chance of surviving.

Common Amazon Sword Problems

Yellow Leaves

Yellow leaves may be caused by:

Lack of nutrients
Iron deficiency
Old leaf growth
Poor lighting
Stress after planting

Remove badly damaged leaves and provide root fertilizer if needed.

Transparent or Melting Leaves

Amazon Sword plants are often grown above water before being sold.

After being placed underwater, some older leaves may melt or become transparent.

This does not always mean the plant is dying.

Trim the damaged leaves and watch for healthy new underwater growth from the center.

Holes in the Leaves

Holes may be caused by:

Potassium deficiency
Physical damage
Fish grazing
Older leaves breaking down

Healthy new leaves are more important than the condition of older leaves.

Brown Leaves

Brown leaves may result from:

Nutrient deficiencies
Poor water quality
Old growth
Damage during transport
Inadequate lighting

Remove leaves that are badly damaged or dying.

Slow Growth

Slow growth may be caused by:

Weak lighting
Lack of root nutrients
An immature aquarium
Crowded roots
Low temperatures

Adding root tabs and improving lighting may help.

Trimming an Amazon Sword

Use clean aquarium scissors to remove:

Yellow leaves
Brown leaves
Torn leaves
Algae-covered leaves
Leaves that are blocking too much light

Cut the leaf near the base of the plant.

Do not cut the leaf halfway across because the remaining portion may continue to deteriorate.

Avoid removing too many leaves at one time.

Best Placement in the Aquarium

Amazon Swords are best placed in the:

Midground of large aquariums
Background of medium aquariums
Center as a focal plant
Rear corners of community tanks

Leave space around the plant so its leaves can spread.

Avoid placing smaller plants directly underneath large leaves where they may be shaded.

Best Tank Mates

Amazon Sword plants work well with:

Angelfish
Bettas
Tetras
Rasboras
Gouramis
Corydoras
Rainbowfish
Discus
Shrimp
Snails

Angelfish may use the broad leaves as resting places and may even lay eggs on them.

Can Amazon Swords Be Kept with Goldfish?

Goldfish may nibble on the leaves or uproot the plant while searching through the substrate.

A well-established Amazon Sword with strong roots may survive, but results vary.

Placing smooth rocks around the plant’s base can help protect the roots.

Can Amazon Swords Be Kept with Cichlids?

Some peaceful cichlids may live successfully with Amazon Swords.

Large or aggressive cichlids may:

Dig up the roots
Tear the leaves
Rearrange the substrate

Planting the sword in a pot or protecting its base with rocks may help.

Maintenance

Amazon Sword maintenance includes:

Removing damaged leaves
Adding root tabs when needed
Keeping the crown uncovered
Preventing excessive shading
Trimming runners if you do not want new plants
Performing regular water changes

Once established, the plant usually requires only basic care.

Common Beginner Mistakes

Avoid:

Burying the crown
Using very shallow substrate
Forgetting root fertilizer
Placing the plant in a tank that is too small
Using too little light
Removing all melting leaves at once
Expecting immediate growth after planting
Planting it where it will shade smaller plants

Rick’s Experience

During my years breeding tropical fish and operating FinTastik Tropical Fish, Amazon Swords were among the most popular live plants for community aquariums.

They worked especially well in angelfish tanks because the broad leaves gave the fish natural cover and suitable surfaces for spawning. The most common problem I saw was poor root nutrition. Once root tabs were added, the plants usually began producing stronger new leaves.

Frequently Asked Questions

Are Amazon Sword plants easy to grow?

Yes. They are beginner-friendly when given moderate light and enough nutrients around their roots.

Do Amazon Swords need root tabs?

Root tabs are highly recommended when the plant is growing in plain gravel or sand.

Can an Amazon Sword grow without CO₂?

Yes. Added CO₂ is not required.

Why is my Amazon Sword melting?

Older leaves may melt while the plant adjusts from above-water growth to underwater growth.

How tall does an Amazon Sword grow?

Many varieties reach 12 to 24 inches tall.

Can Amazon Swords grow in sand?

Yes, but they usually need root tabs because plain sand contains very few nutrients.

Can I trim Amazon Sword leaves?

Yes. Remove damaged leaves by cutting them close to the base.

Are Amazon Swords good for angelfish?

Yes. Their large leaves provide shelter and may be used as spawning surfaces.

Rick Recommends

Place one Amazon Sword toward the back or center of a 20-gallon or larger aquarium.

Use at least 2 to 3 inches of substrate, keep the crown uncovered, and place a root tab near the roots. Give the plant time to adjust before deciding whether it is healthy.

Live Aquarium Plants Guide
Best Beginner Aquarium Plants
Java Fern Care Guide
Anubias Care Guide
Java Moss Care Guide
Aquarium Lighting for Beginners
Aquarium Substrates for Beginners

Final Thoughts

Amazon Sword plants are an excellent choice for beginners who want a large, natural-looking aquarium plant. They do not require added CO₂, but they do need enough space, moderate lighting, and good root nutrition.

Plant the roots securely, keep the crown above the substrate, and watch for healthy new leaves growing from the center.