Free Shipping on orders over $50.

Duckweed (Lemna Minor)

$6.95 - $34.95
(26 reviews) Write a Review

Free shippingFREE shipping on all orders over $50!(excluding orders of live fish)


Lemna Minor, also known as duckweed aquatic plant, is a fast-growing, adaptable, hardy, and easy-going plant. Duckweed produces small and oval leaves measuring about 0.12 inches and we ship it in a 4 oz container or by pound. The light green leaves enhance the look of your tank as this clover-like botanical floats along your open-top aquarium.

In good conditions, you can expect your duckweed aquatic plant to spread quickly — a small amount can cover the surface of an average aquarium in one week. Because of its fast growth, duckweed is great for all types of aquariums, especially those with a heavy biological load. The plant will absorb any excess nutrients from the water column to help keep your tank free of algae.

Maintenance for Duckweed Aquatic Plants

Your duckweed floating plant should be regularly thinned to remove excess material. Balance out the look of this plant with other floating plants like water lettuce or dwarf baby tears.

  • Minimum Lighting Required: Moderate
  • Temperature Range: 42.8°F - 91.4°F
  • Tank Placement: Floating

Due to the large temperature range in which duckweed aquatic plants thrive, you can use it in tanks with varied water conditions.

Reviews (26)

  • 5
    Excellent Quality

    Posted by Unknown on 13 Jan 2021

    Perfect amount for my tanks; very healthy!

  • 5

    Posted by Mari on 6 Jan 2021

    Great quality plants. Green and health, packaged well. Good amount of duckweed for the price!

  • 5
    Duck Weed

    Posted by Sandy Botting on 8 Dec 2020

    A lot for the price. It stays alive. I personally did not realize how messy it was in the tank.

  • 5

    Posted by Unknown on 30 Nov 2020

    Never had duckweed I always thought it’d be bigger but they’re doing great on the top of my tank. The little cup came with quite a bit and it works at keeping my jumping fish from even thinking about jumping out.

  • 5
    healthy duck weed

    Posted by Miranda on 28 Oct 2020

    The duck weed I received was healthy and quality. I also received A LOT in the container. So much that I added it to my tank and had plenty left to grow in a separate bin for future projects.

  • 5

    Posted by Katherine S on 15 Oct 2020

    Majority of the duckweed was green and healthy, and is doing well in my tank.

  • 5

    Posted by Patti Mahoney on 13 Oct 2020

    This came in great shape, healthy plant and lots of it!

  • 5
    Duck Weed

    Posted by Danette Powell on 22 Sep 2020

    Nice and healthy!

  • 5

    Posted by Alejandra Ibarra on 1 Sep 2020

    I ordered the smallest amount for my 10 gallon and had plenty left over!

  • 5
    DUCKWEED is Perfect!!

    Posted by Sarah on 29 Jul 2020

    My Betta loves to swim through and hide in his duckweed! If you are looking for fillers but don't want too much, these are perfect! A little goes a long way!!

  • 5

    Posted by Dee Henry on 28 Jul 2020

    Excellent, healthy product! I received my order within a week with instructions on how to treat it before putting it in my pond. I definitely recommend this company for your aquatic needs!

  • 5

    Posted by Glenn Thiltgen on 15 Jul 2020

    arrived as expected and was the best deal on it I've seen yet

Trust in Modern Aquarium

At Modern Aquarium, we guarantee the quality of our plants and our products. Any images you see on our site are of the plants that were grown in a plant nursery where they are grown and cultivated. If you have any questions about integrating your new plants into your tank, reach out to our team for assistance!