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Duckweed (Lemna Minor)

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

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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.

Many fish, and particularly Koi and goldfish, love to eat duckweed and others will appreciate the shade and cover it provides, making them feel secure.

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: Low to Moderate
  • Temperature Range: 41°F - 95°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 (33)

  • 5
    Came in good condition

    Posted by Silas Stary on 12 Apr 2021

    Plants were alive and well. Arrived promptly and are growing in my tank. Good service

  • 5
    A little goes a LONG way!

    Posted by Sean on 4 Mar 2021

    Plants are very healthy and ordered way to much. Did not realize how well this spreads out over the surface of your tank. Within a few minutes of placing it in my tank, my Endlers were already investigating it. Now my shrimps are going crazy in it, crawling all over the roots and doing their "shrimpy" thing

  • 5
    Love it!

    Posted by Amber on 15 Feb 2021

    My betta absolutely loves the coverage! It spreads like crazy too!

  • 5

    Posted by Mellissa on 15 Feb 2021

    A lot of duckweed in that small cup. Enough to give a good amount for my 700gal pond.

  • 4

    Posted by Evika on 4 Feb 2021

    The reason for four stars instead of five is because it comes super tiny. Far from fully developed. Due to it being so young its hard to work with, sticking to everything. Now it does come healthy and is thriving in my small 5.4 gallon tank.

  • 5
    High Quality

    Posted by Diego Romero on 20 Jan 2021

    I recently ordered some duck weed and expected to receive them healthy and with some dying . I expected wrong every single piece of duckweed was flourishing with amazing colors and great health. I 100% recommend anyone thinking about buying these to just do it you WILL NOT REGRET IT.

  • 5
    Duck-duck weed (sorry)

    Posted by Ms. Parry on 15 Jan 2021

    I bought one of these containers for my classroom tank to change my freshwater tank from plastic decor to real plants. Perfect amount! My students loved adding it in and watching it grow.

  • 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.

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!