The Fish Guru

Amazon Sword Plants: How to Plant Maintain and Prevent Diseases

Introduction to Amazon Sword Plants

The Amazon Sword Plant (Echinodorus sp.) is a popular freshwater aquatic plant commonly found in ponds and aquariums. The plant gets its name from its striking resemblance to a sword, with its long and narrow leaves that grow up to 20 inches long.

Amazon sword plants are highly valued by plant breeders, aquascapers, and hobbyists due to their beautiful appearance, easy maintenance, and adaptability to various conditions.

Semi and Fully Aquatic Traits

Amazon Sword Plants are a semi-aquatic plant, meaning that they can partially survive in water and partially on land. However, in its natural habitat, the Amazon Sword Plant is typically fully submerged.

This means that breeding Amazon Sword Plants is often challenging for plant breeders. The plants semi and fully aquatic traits make it an ideal addition to a pond or an aquarium.

In aquariums, the Amazon Sword Plant is an excellent option for enhancing the tanks visual appeal. The plants lush, green leaves create a beautiful background, and its vibrant colors offer a delightful contrast to its surroundings.

Planting Amazon Sword Plants

To ensure that Amazon Sword Plants thrive in your pond or aquarium, it is essential to follow proper planting procedures.

Pot Removal

Before planting your Amazon Sword Plant, you must remove it from its pot. Take care not to damage the roots during the removal process.

The root system of the plant is essential to its overall health, as it serves as an anchor and nutrient gatherer.

Substrate Preparation

Next, prepare the substrate for the plant. An aquarium-safe substrate, like sand or gravel, is recommended to offer the plant’s roots a solid base.

Adding a pre-rinsed substrate will help minimize the accumulation of debris and prevent unwanted algae growth.

Actual Planting

When planting your Amazon Sword Plant, it is crucial to ensure that the roots are fully submerged, and the stem and leaves are above the substrate level. Gently press the plant down into the substrate to ensure that it is secure, and the roots are fully in contact with the substrate.

Placement and Spacing

While planting your Amazon Sword Plant, keep placement and spacing in mind. The plant can grow to be quite large, so placing it in the background of your tank is recommended.

Additionally, make sure the plant is not too close to other plants and has enough space to grow.

Add Root Tabs

Amazon Sword Plants are root feeders that absorb essential nutrients through their root system. Adding root tabs, specifically formulated for plants, can provide nutrients like iron, magnesium, and potassium, which are crucial for the plants overall growth and health.


In conclusion, Amazon Sword Plants are a popular freshwater plant that can enhance the beauty of your tank or pond. Proper preparation and planting techniques will ensure the plants health and vitality while also making maintenance easy.

As a semi-aquatic plant, it can survive partially in water and partially on land. As such, plant breeders must take extra care when breeding Amazon sword plants.

With proper care, your Amazon Sword Plant will develop into a lush, green beauty that will delight you and your guests for years to come.

Maintaining Amazon Sword Plants

Once you have planted your Amazon Sword Plants, maintaining them is relatively easy, provided that you follow the proper procedures. Below are some essential tips to ensure that your Amazon Sword Plants remain healthy and vibrant.


The correct lighting system is essential for the healthy growth of Amazon Sword Plants. The recommended lighting system is LED, as it offers excellent energy efficiency and controllability.

Amazon Sword Plants can grow successfully in low-light conditions; however, natural or artificial light is essential to promote its growth. Ensure that you provide the plant with enough light, as too much or too little can affect its growth.


As a tropical plant, Amazon Sword Plants thrive in warm water. Therefore, maintain the water temperature between 72-82F (22-28C) for the plant to flourish.

Ensure that the water is within this range all year round because fluctuations can stress the plant and cause damage or even death.

Water Flow

Amazon Sword Plants require low to medium water flow. If the water flow is too strong, the plant may not grow correctly and may suffer damage as a result.

A recommended technique is to provide water flow of 1-2 times the water volume per hour. The water flow rate can be adjusted by using a good quality water pump.

CO2 Supplement

Carbon dioxide (CO2) is essential for plant growth and photosynthesis. Though Amazon Sword Plants do not require high CO2 concentrations, a CO2 booster drop or a CO2 generator can be added to improve the plant’s growth rate and overall health.

Add Algae Eaters

Algae can become the worst nightmare of aquarium owners. One solution to keeping algae under control is to add algae eaters like certain types of fish, snails, or shrimp to your aquarium.

They help combat unsightly and potentially harmful algae growth and help keep the water clean and healthy for the plant and other aquatic life.

Trimming Your Amazon Sword Plant

Amazon Sword Plants can grow quite large, and regular trimming is necessary to promote healthy growth and prevent the plant from overshadowing others in the aquarium. When trimming, use a pair of sharp scissors or pruning shears to cut the plant near the substrate.

If the plant has taken over your aquarium, uprooting it and replanting is also an option.

Propagating Amazon Sword Plants

Reproduction through rhizomes is the most common way of propagating Amazon Sword Plants, and it is an easy process. Rhizomes are offshoots that grow from the main part of the plant.

Simply take a healthy rhizome cutting and plant it in a new spot in your aquarium. Over time, the new plant will grow, producing a new Amazon Sword Plant.

Melting of Amazon Sword Plants

Amazon Sword Plants can suddenly start to deteriorate, where the leaves become translucent and melt away. This can be caused by several factors, including nutrient deficiency, exposure to too much light, and lack or too much water.

Nutrient Deficiency

Amazon Sword Plants require ample nutrients to maintain their growth and appearance. If the plant does not get the necessary nutrients, it will not grow or may start to melt away.

Ensure that you use high-quality root tabs and check the CO2 levels to prevent nutrient deficiencies. Exposure to Too Much


Too much light can damage Amazon Sword Plants and cause them to melt.

If your plant is exposed to too much direct or intense light, move it to a shadier location or add floating plants to the top of the aquarium to provide surface shade.

Lack or Too Much Water

Maintaining the correct water level and temperature is critical to the health of your Amazon Sword Plant. A lack of water can cause the plant to dry out, while too much water can create a less suitable environment for the plant to thrive.

Ensure that the water temperature is within the recommended range and that the water level is at the correct height.


Maintaining Amazon Sword Plants in your aquarium or pond is simple as long as you follow the proper procedures.

Lighting, water temperature, water flow, CO2 supplement, algae eaters, trimming, propagating, and nutrient preservation are key factors for healthy and vibrant Amazon Sword Plants.

However, if you notice that your plant is melting, it could be due to nutrient deficiency, exposure to too much light, or lack or too much water. Addressing these issues promptly will help prevent further melting of the plant.

Diseases in Amazon Sword Plants

Despite their hardiness, Amazon Sword Plants are not immune to diseases.

Root Rot,

Leaf Spot, and

Crown Rot are some of the most common diseases that can affect Amazon Sword Plants.

Below is a detailed look at these diseases, their causes, and how to cure and prevent them.

Root Rot

Root Rot is characterized by a fungal infection that appears as a pale and discolored appearance of leaves, ultimately leading to plant decay. This disease is caused mostly by overwatering or unfavorable water conditions, leading to excessive moisture in the soil.

To prevent root rot, ensure that the roots are not buried too deep in the substrate and provide a suitable watering schedule for the plant to maintain a well-draining substrate. To cure root rot, remove the infected plant from the aquarium or pond and discard it to avoid the spores from spreading.

Leaf Spot

Leaf Spot is a bacterial and fungal infection that appears as visible brown or black spots on the Amazon Sword Plant leaves. This infection can cause considerable damage to the plant if it is left uncontrolled.

Leaf spot is caused by poor water quality in the aquarium or pond or lack of proper care. To prevent leaf spot, maintain good water parameters, ensure that the leaves are adequately trimmed to let ample air circulation around the plant, and avoid overcrowding the plant in the tank.

To cure leaf spot, you should remove the infected leaves promptly, and apply a suitable antifungal or antibacterial medication to the plant.

Crown Rot

Crown Rot is a fungal infection that appears as the leaves of the Amazon Sword Plant start to melt and decay. This disease is caused by unsuitable substrates that hold excessive moisture and cause the roots to become infected.

To prevent crown rot, ensure that you are using a well-draining substrate and avoid overwatering the plant. To cure crown rot, remove the infected plant from the aquarium or pond and discard it to avoid the spores from spreading.

Frequently Asked Questions

What to Look for When Buying Amazon Sword Plants? When buying Amazon Sword Plants, you should expect healthy plants with bright green leaves and well-developed root systems.

Choose plants that have a uniform spread of leaves, free from any signs of damage or disease. Check the roots for signs of rot or decay.

Healthy roots should appear firm, white, and well-established in the substrate. Can You Grow Amazon Sword Without Substrate?

No, you cannot grow Amazon Sword Plants without a substrate. Substrates act as an anchor for the plant’s roots and provide essential nutrients and minerals to fuel the plant’s growth.

However, you can grow Amazon Sword Plants in pots instead of directly planting them in the substrate. What Fish Are Compatible with Amazon Sword Plants?

Amazon Sword Plants are compatible with a wide range of community freshwater aquarium fish. Some ideal fish include tetras, danios, rasboras, and mollies.

You should avoid fish that have a tendency to nibble on plants or disturb the substrate as it can uproot the plants or damage the plant’s roots. Additionally, adding algae eaters like snails or shrimp to your aquarium will help keep the tank clean and free from unwanted algae growth without damaging the Amazon Sword Plants.


Proper care and maintenance of Amazon Sword Plants are essential to ensure that they remain healthy, vibrant, and free from diseases.

Root Rot,

Leaf Spot, and

Crown Rot are some of the common diseases that can affect Amazon Sword Plants.

Avoiding overwatering, maintaining good water parameters, and providing a well-draining substrate are some of the essential management practices that can help prevent and control plant diseases. When buying Amazon Sword Plants, choose healthy plants with bright green leaves, developed root systems, and free from any signs of disease or damage.

In conclusion, Amazon Sword Plants are a hardy and beautiful aquatic plant that can be a valuable addition to any aquarium or pond. To ensure that the plants thrive, proper planting and maintenance techniques are essential.

This article has covered various topics, including semi-aquatic traits, planting techniques, maintenance requirements, and other factors to consider. It has also discussed common diseases that can affect Amazon Sword Plants, their causes, and ways to prevent and cure them.

By following the tips and guidelines outlined in this article, you can ensure that your Amazon Sword Plants remain healthy, vibrant, and free from diseases. Remember to choose healthy plants with bright green leaves and developed root systems when buying Amazon Sword Plants, and add algae eaters to your aquarium to keep the water clean and healthy.

In short, with proper care, Amazon Sword Plants can flourish, providing an attractive and natural element to complement your aquatic landscape.

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