Does Java Fern Have To Be Submerged?

Found a strange abnormality in the java fern I bought a couple of days
Found a strange abnormality in the java fern I bought a couple of days from

What is Java Fern?

Java Fern, also known as Microsorum pteropus, is a popular aquatic plant often used in home aquariums. It's not actually a fern but a type of fern-like aquatic plant that is easy to care for. It is native to Southeast Asia and is one of the most commonly used aquarium plants in the hobby. Java Fern is a slow-growing, low-maintenance plant that can survive in a wide range of water conditions. It is a popular choice for aquascaping and is often used as a centerpiece in tanks.

Do Java Ferns Have to be Submerged?

No, Java Ferns do not have to be submerged to thrive. In fact, they can do quite well out of the water. This is because they are a type of epiphyte, which means they are able to absorb water and nutrients from the air and their surrounding environment. This makes them very low-maintenance and easy to care for, and allows them to thrive in both aquatic and terrestrial environments.

What Are the Benefits of Keeping Java Fern Out of the Water?

Keeping Java Fern out of the water has many benefits, including:

  • It is much easier to care for and maintain.
  • It does not require regular water changes or filtration.
  • It is less likely to be affected by algae and other parasites.
  • It is easier to propagate, as the plantlets can be removed and planted in a different location.
  • It has a much greater chance of surviving in adverse conditions.
  • It can be easily moved around and rearranged.

How to Care for Java Fern Out of the Water

Caring for Java Fern out of the water is very simple. Firstly, make sure the plant is planted in a well-draining substrate such as gravel, sand, or soil. Java Ferns prefer a slightly acidic soil, so be sure to use a soil with a pH of 5.5-7.0. The soil should be kept moist, but not overly wet or soggy. The plant should be fertilized with a balanced liquid fertilizer every two weeks. Lastly, the plant should be kept in a shaded area, as too much direct sunlight can cause the plant to become scorched.

Can Java Ferns Be Submerged?

Yes, Java Ferns can be submerged in an aquarium. They are, however, less likely to thrive in this environment than when out of the water. Submerged Java Ferns require more care and maintenance, as they need to be placed in an area with high water flow and good filtration. The water should be kept clean and free from any debris or debris-producing organisms. The substrate should also be kept clean and free from detritus and other debris. Regular water changes and maintenance are essential for keeping Java Ferns healthy when submerged.


Java Ferns do not have to be submerged to thrive, but they can be if desired. Submerged Java Ferns require more care and maintenance than those kept out of the water, but they can still do well in an aquarium if given the proper care. Regardless of whether Java Ferns are kept underwater or out of the water, they are easy to care for and make a great addition to any aquarium.

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