How To Make Java Fern Thrive In 2023

Lowtech tank only grow java fern but even that’s not thriving
Lowtech tank only grow java fern but even that’s not thriving from


Java fern is one of the most popular aquatic plants for aquariums, and with good reason. They are hardy, low-maintenance, and can add a lot of visual interest to an aquarium. It's no wonder why so many people are looking for ways to make their java fern thrive. In this article, we'll discuss how to make java fern thrive in 2023. We'll look at the right water conditions, substrate, light, and fertilizers to use to ensure your java fern stays healthy. We'll also discuss how to propagate java fern and what kind of tankmates you should consider. With this information, you'll be able to create the perfect environment for your java fern to thrive and make your aquarium look beautiful.

The Right Water Conditions

Java ferns are native to Southeast Asia, so they are adapted to tropical environments. This means they prefer warm water temperatures and high levels of water hardness. The ideal temperature range for java fern is between 72°F and 82°F. As for water hardness, a pH level between 6 and 7.5 is best. Java ferns are also very sensitive to ammonia, nitrite, and nitrate levels, so it's important to keep these levels as low as possible. To do this, make sure to perform regular water changes and keep your tank free of debris and uneaten food. With the right water conditions, your java fern will be able to thrive.

Substrate and Fertilizers

Java ferns do not need a substrate to grow, but they will appreciate having one. A sandy or gravel substrate is best, as it will provide the plant with the nutrients it needs to stay healthy. When it comes to fertilizers, you'll want to use one specifically designed for aquatic plants. These fertilizers will give your java fern the nutrients it needs to grow, and help to maintain the water conditions in your tank. Be sure to follow the instructions on the fertilizer packaging.

The Right Lighting

Java ferns prefer bright, indirect light. A good rule of thumb is to provide your tank with enough light to see the bottom of the tank clearly. Too much light can cause your java fern to become pale and lose its vibrant green hue. You can use fluorescent or LED lights, but make sure to provide your tank with some shade as well. Java ferns can also benefit from the addition of an algae scrubber or a floating plant, as these will help to keep the light levels in your tank consistent.

Tank Mates

When choosing tank mates for your java fern, it's important to choose fish that won't eat or damage the plant. Smaller fish, such as tetras and rasboras, are a good choice. You should also avoid aggressive fish, such as cichlids and goldfish, as they may eat or uproot the plant. If you want something a bit more exotic, shrimp and snails can also make good tank mates. Just make sure to do your research before introducing them to your tank.


Java ferns are very easy to propagate. All you need to do is cut off a piece of the plant, remove the rhizome (the stem-like root) and replant it in your tank. The rhizome will quickly form new leaves and roots, creating a new java fern. You can also propagate your java fern by division. Simply divide the rhizome into two or more pieces and replant them in your tank. The new plants will form their own leaves and roots and create a whole new look.


Java ferns are an excellent choice for aquariums, as they are low-maintenance and can add a lot of visual interest. To make your java fern thrive, be sure to provide it with the right water conditions, substrate, light, and fertilizers. You should also provide it with some tank mates that won't eat or damage the plant. And if you want to propagate your java fern, it's very easy to do. With the right care and maintenance, your java fern will thrive and make your aquarium look beautiful.

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