How To Grow Hornwort In Aquarium

Hornwort Growing! My Aquarium Club
Hornwort Growing! My Aquarium Club from


Hornwort is an aquatic plant that is related to the fern family. It is a popular choice for aquariums and ponds, as it is a hardy plant that can survive in a variety of conditions. Hornwort can help keep water clean by removing carbon dioxide and nitrates, while also providing oxygen to the water. It can also provide food and shelter to fish. Growing hornwort in an aquarium is easy, but there are some tips and tricks to keep in mind.

Choose the Right Tank

The first step to growing hornwort in an aquarium is selecting the right tank. The tank should be large enough to accommodate the amount of hornwort you want to grow, as well as any other plants or fish you may be keeping. It should also be deep enough to allow for adequate water circulation and lighting. Additionally, the tank should have a substrate that will provide the hornwort with the nutrients it needs to thrive.


Hornwort needs plenty of sunlight to photosynthesize, so the tank should be located in a sunny spot. If natural sunlight is not available, the tank should be equipped with a high-quality aquarium light. The light should be kept on for at least 8 to 12 hours per day, depending on the type of lighting used.

Water Temperature

Hornwort prefers temperatures of between 68 and 82 degrees Fahrenheit. The water should be tested regularly to ensure it is within this range. If the water is too cold, the hornwort may not grow properly. Additionally, the pH level of the water should be between 6.5 and 7.5, as hornwort does not thrive in acidic water.


Hornwort needs regular fertilization. A fertilizer that contains nitrogen, phosphorus, and potassium is best. The fertilizer should be added to the tank monthly and should be mixed in with the substrate. If hornwort is planted in a gravel substrate, the fertilizer should be placed underneath the gravel.


Hornwort can become overgrown very quickly, so it is important to prune it regularly. Pruning should be done with sharp scissors and the dead leaves should be removed from the tank. Trimming the roots occasionally can help keep the hornwort from becoming too large.


In addition to regular pruning, hornwort should also be maintained by keeping the tank clean. This means regularly changing the water, cleaning the filter, and removing any debris from the substrate. Hornwort can also be affected by algae, so the tank should be checked for algae growth and treated accordingly.


Once the hornwort has grown to the desired size, it can be harvested. The leaves can be cut off the stem with sharp scissors. This can be done every few weeks to ensure the hornwort remains healthy and vigorous. The leaves can be used in salads or as a garnish.


Growing hornwort in an aquarium is easy and can be a great addition to any aquatic environment. It helps keep the water clean and provides oxygen, food, and shelter for fish. Keeping the tank clean, pruning regularly, and providing adequate lighting and fertilization will ensure that the hornwort remains healthy and vigorous.

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