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Hornwort (Ceratophyllum Demersum)

(120 reviews) Write a Review
Minimum Purchase:
2 units

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Hornwort (Ceratophyllum Demersum)

Hornwort, also known as Ceratophyllum Demersum, is found worldwide. It is a well-known plant in the hobby. It grows long stems with needle-like and stiff leaves or, in common parlance, the "horns" from where it takes its common name. Hornwort can be used as a floating plant or as an upright stem plant. It does not have roots but when planted, Hornwort produces rhizomes that allow it to attach to the gravel. This plant is a fast grower and many hobbyists use it in fry tanks to provide hiding places for young fish. Because of its fast growth, Hornwort is great for planted aquariums as it will quickly absorb extra nutrients from the water column, preventing algal blooms.

Hornwort can flower and produce seeds. However, the flowers and seeds are small and hardly noticeable. The best and easiest way to propagate hornwort is to snip the stems apart. The separated pieces will just continue growing, creating new plants.    

Caring For Hornwort

Under good conditions, this plant will grow robustly and have light to deep green coloration. It is an easy plant to care for and grow. It does not require any special care or strong lighting but, if provided, the plant will grow fast.

  • Minimum Lighting Required: Moderate
  • Temperature Range: 59-83°F
  • Tank Placement: Floating or Background

The hornwort for sale in our store is one of the easiest plants to start with. Quite literally, you can just put it into your tank, and you are done! The plant should adjust to the new environment very quickly and start growing rapidly.

Plants at Modern Aquarium

When you choose to shop our collection of live aquarium plants and botanicals, every image you see on our site is a true representation of the plant grown in our nurseries and of the highest quality we can provide. Our plants are sourced from the best Florida nurseries and we always have a large selection of plants available for quick shipping to you. Get free shipping when you spend $50+ on live aquarium plants today. And do not forget to complete your aquarium’s aquascape with our driftwood, aquascaping rocks, botanicals, and live aquarium fish.


Reviews (120)

  • 5
    Large Healthy Plants!

    Posted by Ryann Chase on 16 Jun 2022

    We received 2 bunches of this plant. It arrived healthy and with plenty to put some in both of my tanks! Very happy with my purchase!

  • 5
    Came in fast and looks great. Both the plant and in the aquarium.

    Posted by Don on 15 Jun 2022

    Looks great

  • 5

    Posted by Michele on 8 Jun 2022

    Arrived in great shape and doing well now in the aquarium.

  • 3

    Posted by Robert Stilley on 24 May 2022

    Plants were all brown when received. Hoping they will turn green soon.

  • 5

    Posted by Sherry on 11 Apr 2022

    Each bunch was beautiful, healthy plants and super nice size.

  • 5
    Pretty Good Plants

    Posted by Kylee Cross on 1 Apr 2022

    Plants arrived pretty cold, but once I planted them, they started growing all over in about 2 weeks!

  • 5
    Full Healthy plants

    Posted by Tony Seitz on 23 Mar 2022

    I am happy with the shipping and quality of the Hornwort plants from Modern Aquarium!

  • 5

    Posted by avery on 22 Mar 2022

    came with lots more than what i expected and arrived perfect!

  • 5

    Posted by Deb. Reilly on 11 Mar 2022

    I feel very fortunate to have found Modern Aquarium and gave this company a try. My plants came in so healthy, a pretty spring green and those two bunches are huge! After a short quarantine, I put a bunch in each corner of my tank, weighted. What i didn’t expect were the Diamond Tetras to have so much fun claiming their spots and swimming through them! Great plants! My thanks to the team at Modern Aquarium

  • 3
    Great plant, but infested with pest snails

    Posted by Noelle on 11 Mar 2022

    The hornwort I received was very healthy and beautiful, and I would love to get more, however it was infested with pest snails. I have two elderly male bettas (I lost the third a few days ago), and I’m having to start up an entirely new tank for the eldest one because the snail issue has gotten so bad. I haven’t found any snails in my female sorority tank so far, but all three boys’ tanks I’m finding and picking out new snails every single day, and cupramine/aquarium salt aren’t helping. I’ll only buy guaranteed snail free plants in the future.

  • 5

    Posted by Linda on 8 Mar 2022

    Impressed is not nearly a strong enough word for this delivery. It was well packaged. I followed directions and discovered 1 snail. Then I I trounced it to my aquarium and WOW! It took off nearly as soon as I planted it. It is spreading out and growing incredibly fast. I am just so pleased I can't even put it into words!

  • 5
    Great plant!

    Posted by Rachel Kramer on 8 Mar 2022

    Arrived in excellent condition!