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What is Cardinalis Aquarium Plant Commonly Used For?

Updated: May 3, 2022

Aquarium plants come in a wide variety of species, each with its unique set of characteristics and benefits. One of the most popular aquarium plants among hobbyists is the Cardinalis plant. This striking plant boasts vibrant red hues that add a pop of color to any aquatic environment. But what is Cardinalis aquarium plant commonly used for? In this article, we’ll explore the benefits and uses of this popular aquarium plant.

What is Cardinalis Aquarium Plant?

The Cardinalis aquarium plant, also known as Lobelia cardinalis or Scarlet Temple, is a freshwater plant native to the Americas. It belongs to the Campanulaceae family and can grow up to 30 centimeters tall. The plant’s striking red leaves make it a popular choice for aquascaping enthusiasts looking to add color and texture to their aquariums.

Benefits of Cardinalis Aquarium Plant

Cardinalis aquarium plant offers several benefits to both the aquatic environment and its inhabitants. Here are some of the advantages of adding this plant to your aquarium:

Improved Water Quality

Cardinalis aquarium plant is an excellent natural filter that helps remove toxins from the water, such as ammonia and nitrates. This plant absorbs these harmful chemicals through its leaves and roots, converting them into harmless compounds that won’t harm your fish or other aquatic creatures.


Like other aquatic plants, Cardinalis aquarium plant also helps oxygenate the water by releasing oxygen during photosynthesis. This process helps maintain optimal oxygen levels in the water, ensuring that your fish and other aquatic creatures can breathe easily.

Natural Habitat for Fish

Adding Cardinalis aquarium plant to your tank provides a natural habitat for your fish, as well as hiding places for shy or timid species. The plant’s lush foliage offers a sense of security to your fish, making them feel more at ease in their environment.

How to Care for Cardinalis Aquarium Plant

Cardinalis aquarium plant is relatively easy to care for, making it an ideal choice for beginner aquarists. Here are some tips on how to care for this plant:


Cardinalis aquarium plant requires moderate to high lighting levels to thrive. Ensure that your aquarium has sufficient light, preferably in the range of 2-3 watts per gallon.

Water Conditions

Cardinalis aquarium plant prefers soft, slightly acidic water with a pH level between 6.0 and 7.5. Maintain a water temperature of 72-82 degrees Fahrenheit and change the water regularly to prevent the buildup of harmful chemicals.


Cardinalis aquarium plant requires regular fertilization to maintain its vibrant red color. Use a high-quality liquid fertilizer or root tabs every two weeks to ensure that your plant receives adequate nutrients.


Can Cardinalis aquarium plant survive in low lighting conditions?

No, Cardinalis aquarium plant requires moderate to high lighting levels to thrive.

Do I need to supplement CO2 for my Cardinalis aquarium plant?

While not necessary, supplementing CO2 can help enhance the growth and coloration of your Cardinalis aquarium plant.

Can I propagate Cardinalis aquarium plant?

Yes, Cardinalis aquarium plant can be propagated through stem cuttings. Simply cut a 2-3 inch section of the stem and replant it in the substrate.


In conclusion, Cardinalis aquarium plant is a popular freshwater plant known for its vibrant red hues and numerous benefits. This plant helps maintain water quality, oxygenates the water, and provides a natural habitat for fish. With proper care and maintenance, Cardinalis aquarium plant can thrive in any aquatic environment, adding beauty and color to your tank.

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