Amazon Sword Plant (Echinodorus grisebachii): Ultimate Care Guide

The Amazon Sword plant (Echinodorus grisebachii) is a freshwater aquarium plant that originates from South America. These easy-to-care-for plants are great for both beginner and experienced aquarists alike. It gets its name from its long, sword-like leaves that can grow up to two feet in length. The Amazon Sword is a popular choice for aquariums because it is relatively easy to care for and provides a beautiful, natural-looking backdrop for your fish. These plants are quite tolerant to a range of different water conditions, which makes them ideal for many different types of freshwater aquariums. Amazon Sword plants are known for their large, broad leaves that can vary in color from green to brown. These plants can provide both beauty and function to your aquarium, and they are a great addition to many different types of freshwater setups. Amazon Sword plants are also known to help keep your aquarium water clean and clear by absorbing nutrients from the water. In this guide, we will discuss the best way to care for your Amazon Sword Plant so that it thrives in your tank.

Caring for Amazon Sword Plant

Amazon Sword plants are quite easy to care for and don’t need to be planted in order to thrive. They can be placed directly into the substrate. Amazon Sword plants are not difficult to care for, but they do have some specific requirements that must be met in order for them to thrive. Amazon Sword plants are actually a type of aquatic plant, so they should be grown in water. However, they can tolerate brief periods out of water, as long as their roots are kept moist. You can grow Amazon Sword plants out of water, but it will not grow very easily. If you’re planning on growing your Amazon Sword plant out of water, make sure to keep its roots moist and give it plenty of humidity.

Amazon Sword Plant
Amazon Sword Plant

Lighting Requirement

Amazon Sword Plants require bright lighting, with at least two to three watts per gallon. They will do best under full spectrum lighting, which simulates natural sunlight and contains all the colors of the light spectrum. If you are growing Amazon Swords in a low-light aquarium, you may need to supplement with artificial lighting.

To ensure your Amazon Sword receives the right amount of light, place it in an area of your aquarium that gets moderate to high lighting. Amazon Swords can tolerate low lighting, but they will grow slower and may not produce as many leaves. If you have a planted aquarium with low lighting, you can still grow Amazon Swords by using higher-wattage bulbs or special plant grow lights.

Temperature Requirement

The Amazon Sword Plant is a tropical plant, so it thrives in warm water. The ideal temperature for this plant is between 72 and 82 degrees Fahrenheit. If the temperature drops below 68 degrees, the plant will start to die. So, if you live in a cold climate, you’ll need to take measures to keep your Amazon Sword Plant warm. One way to do this is to keep it in a heated aquarium. Another way is to use an aquarium heater. Amazon Sword Plants are also very sensitive to changes in temperature, so you’ll need to be careful not to make sudden changes. Abrupt changes in temperature can cause the plant to go into shock and die. So, if you need to make a change, do it gradually over a period of days.

Water pH

Amazon Sword plants prefer a neutral to slightly acidic pH, around six to seven. However, they are adaptable and can live in a wider range of pH levels. Amazon Swords will show signs of distress if the pH is outside of their ideal range. If the leaves begin to yellow or brown, it is an indication that the plant is not happy with the current pH level.

If the Amazon Sword Plant is growing in water that is too acidic, it can cause the leaves to turn yellow and stunt the plant’s growth. To raise the pH of the water, you can add a small amount of baking soda to it. Just be sure to do a little research on how much baking soda to add, as adding too much can be just as harmful to the plant as having water that is too acidic.

Another way to raise the pH of the Amazon Sword Plant’s water is by using dolomite lime. You can add a small amount of this to the water, and it will help to raise the pH levels. Just be sure not to add too much, as this can also be harmful to the plant.

If you want to lower the pH of the Amazon Sword Plant’s water, you can use vinegar. Just add a small amount of vinegar to the water, and it will help to lower the pH levels. Again, be sure not to add too much vinegar, as this can also be harmful to the plant.

Amazon Sword in Aquarium
Amazon Sword in Aquarium

CO₂ Requirement

While it is not necessary to inject CO₂ into the aquarium in order to grow Amazon Sword plants, doing so will result in faster growth and larger leaves. Amazon Sword Plants will do best when provided with CO₂, whether through a pressurized system or DIY yeast method. The addition of CO₂ will result in Amazon Swords growing larger and more vigorously, as well as producing more oxygen through photosynthesis.

Pressurized System

A pressurized system is the best way to provide your Amazon Sword Plant with a constant and steady supply of CO₂. A pressurized system is a setup that injects CO₂ into the aquarium water through a regulator. This is the most effective way to add CO₂ to an aquarium, and it will result in faster growth for Amazon Sword plants. Pressurized systems are more expensive than DIY yeast methods, but they are much easier to maintain. If you decide to go with a pressurized system, you’ll need to purchase a CO₂ tank, regulator, and diffuser. Amazon Sword Plants will do best with a dosing schedule of around 15-20 bubbles per second.

DIY Yeast Method

Amazon Sword Plants can also prosper when provided CO₂ through a DIY yeast method. For this method, you will need to mix together sugar, water, and yeast to create a CO₂-producing concoction. Amazon Sword Plants will do best with around ½ cup of sugar, ¼ cup of water, and ¼ teaspoon of yeast per gallon. Once the mixture is bubbling away, you can then add it to your aquarium. Amazon Sword Plants will consume the CO₂ produced by the yeast mixture, so it is important to monitor the levels of CO₂ and replenish them as needed.

Amazon Sword Propagation

Amazon Sword plants are easy to propagate through division, seeds, or by planting the runners. Amazon Sword plants can be easily divided when they become too large for the space they are in. Carefully remove the plant from its pot and divide it into sections, making sure that each section has a good root system. Plant the sections in new pots filled with fresh Amazon Sword plant soil mix and water well.

To propagate Amazon Swords by planting the runners, first, remove the plant from the pot and gently loosen the roots. You should see small white rootlets called “runners” growing out from the main root system. These runners can be carefully pulled away from the main plant and replanted in their own pot filled with fresh aquarium soil. Amazon Sword plants will readily produce runners, so you should have no trouble propagating them.

Amazon Sword plants can be grown from seed, although it is not the easiest way to propagate them. Amazon Sword seeds are very small and difficult to handle. They must be sown on a moist substrate and kept at a temperature of 70-80 degrees Fahrenheit for germination. Once they have germinated, the Amazon Sword seedlings must be kept moist and warm until they are large enough to be transplanted into their own pots. Amazon Sword plants grown from seed will take longer to mature than those propagated by division or runners, but it is possible to grow them this way.

Growth Rate

Amazon Sword Plants are not fast growers. In the wild, they can take years to reach their full-size potential. Under ideal conditions in an aquarium though, they can grow much faster. Amazon Sword Plants will produce new leaves every few weeks and will slowly spread through runners.

To encourage faster growth, provide your Amazon Sword Plant with plenty of nutrients. This can be done through regular fertilization and by adding nutrient-rich substrates to the aquarium. Amazon Sword Plants are heavy feeders and will benefit from being fertilized weekly. This plant can be sensitive to copper, so be sure to use a copper-free fertilizer.

Growth Height

Amazon Sword plants can grow to be quite large, so make sure you have enough space in your aquarium for them to reach their full potential. Amazon Sword plants can grow to a height of up to 18 inches (45 cm), and they spread outwards just as much. So, you’ll need a tank that’s at least 18 inches (45 cm) wide to accommodate this plant.

Problems Growing Amazon Sword Plants

Amazon Sword plants are generally very easy to grow. However, there are a few problems that can occur if not properly cared for. Here are some of the most common problems to watch out for with your Amazon Sword plant.


If your Amazon Sword plant is melting, it is likely due to one of two reasons: either the water parameters are off, or the plant is getting too much light. Let’s go over each issue in turn.

If the water parameters are off, you will need to take a sample of your tank water to a local fish store or Amazon Sword retailer to have it tested. Once you know what the problem is, you can take steps to fix it.

If the plant is getting too much light, you will need to either move it to a shadier spot in the tank or reduce the amount of light it is getting. Amazon Swords do best with 12-14 hours of light per day.

You should also check the plant’s environment and make sure that it is not too hot or too cold. The ideal temperature range for Amazon Sword Plants is between 72 and 82 degrees Fahrenheit. If the temperature is outside of this range, try to adjust it gradually until the plant is comfortable.

Once you have determined the cause of the problem, take steps to fix it, and your Amazon Sword Plant should start to recover. If the leaves are only slightly melted, they will likely grow back on their own. However, if the leaves are badly melted, you may need to trim them off using a sharp knife or scissors.

Holes in Leaves

If you notice holes in the leaves of your Amazon Sword Plant, don’t be alarmed. This is a common issue that can be caused by a few different things.

The most common cause of holes in Amazon Sword leaves is snail or slug damage. These pests are attracted to the soft, juicy leaves of the plant and will munch on them, causing the holes you see. Another possible cause of holes in Amazon Sword leaves is fish. If you have fish that like to nibble on plants, they may be the culprit.

To determine if snail or slug damage is the cause of the holes in your Amazon Sword leaves, look for slimy trails around the plant. If you see these, then you know that snails or slugs are the problem. To determine if fish are the cause of the holes in your Amazon Sword leaves, look for bite marks on the leaves. If you see these, then you know that fish are the problem.

There are a few things you can do to get rid of the pests that are causing holes in your Amazon Sword leaves. If snails or slugs are the problem, you can use a bait that contains iron phosphate. This will kill the pests and is safe for use around plants. If fish are the problem, you can try a few things. First, you can try moving the plant to a different location in the tank. This will sometimes deter the fish from nibbling on the leaves. You can also try covering the leaves of the Amazon Sword Plant with netting or cheesecloth. This will protect the leaves from being nibbled on by fish.

Whatever method you choose, be sure to remove the dead or dying leaves from the plant to prevent the spread of disease.

Turning Brown

Amazon Sword plants can sometimes turn brown and lose their color. This can occur due to water quality, inadequate lighting, or a lack of nutrients. There are a few things you can do to fix the problem.

First, check the water quality in your aquarium. Amazon Swords are very sensitive to changes in water quality, and even a small change can cause them to turn brown. If the water quality is not good, make sure to fix it right away.

Next, take a look at the Amazon Sword itself. If it is not getting enough light, it will start to turn brown. Amazon Swords need at least 12 hours of light per day, so make sure your aquarium is getting enough light. If you are using artificial lights, make sure they are the right type and intensity for Amazon Swords.

Finally, Amazon Swords need a lot of nutrients to stay healthy. If they are not getting enough nutrients, they will start to turn brown. Make sure that the Amazon Sword is getting enough food and check to see if the roots are rotting. If you follow these tips, your Amazon Sword should start to turn green again in no time!

Where Can I Find an Amazon Sword Plant for Sale?

Amazon Sword plants are relatively easy to care for, making them a great choice for beginner aquascapers. When choosing an Amazon Sword plant for your aquarium, be sure to select a healthy specimen with green leaves. Avoid plants with yellowing leaves, as these may be indicative of poor health. You can find Amazon Sword for sale at many online retailers or your local nursery. Amazon Sword plants are not expensive, and they are widely available. They typically range in price from $15 to $20.


Amazon Sword plants are relatively easy to care for, making them a great choice for both beginner and experienced aquarists alike. With proper lighting, nutrients, and CO₂ injection, these plants can thrive and provide your aquarium with both beauty and function. We hope this guide has been helpful in teaching you how to care for your Amazon Sword plant.

Fish Laboratory

With decades of collective fishkeeping experience, we are happy to share the fish care tips that we've picked up along the way. Our goal at Fish Laboratory is to keep publishing accurate content to help fishkeepers keep their fish and aquarium healthy.

Recent Posts