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Duckweed (Lemna Minor)

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

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Duckweed (Lemna Minor)

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. These floating pants produce root like structures that hang underneath the leaves.

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. Each floating leaf, through the process called vegetative reproduction, will produce more floating leaves. 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 & Care 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.

Plants From Modern Aquarium

Every image of our live aquarium plants 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 Java Moss today and complete your aquarium’s aquascape with our driftwood or aquascaping rocks.

Reviews (56)

  • 5
    Quality weed and my turtles love it

    Posted by Ronald Beiswanger on 12 Jan 2022

    Quality weed. Arrived alive and well

  • 5

    Posted by Haley W on 20 Dec 2021

    I found out about duckweed a while ago and wanted to give it a try. I bought this and their was no snails! I had an algae issue going on and this actually fixed it tbh! It’s growing super fast and it looks so good in my tank! I have a 10 gallon fish tank with 10 glow fish, 3 tiny catfish, and a snail! I recommend getting this duckweed. Totally worth it! And it came in a small container but I got a lot for my money! I had to give half of it away because the other half covered my entire tank haha!

  • 5
    Great Quality!!

    Posted by Amanda Fogerson on 14 Dec 2021

    Fast shipping and great quality plants

  • 3

    Posted by SUSAN EDWARDS on 13 Dec 2021

    50% DIDN'T MAKE IT

  • 5

    Posted by Larry on 8 Dec 2021

    This is the first time buying products from Modern Aquarium. The experience was great. The plants were shipped quickly and arrived in great condition despite being in transit a day longer than expected (no fault of Modern Aquarium, FedEx had a delay). I will definitely buy more plant from them when setting up my next aquarium.

  • 5

    Posted by Benjamin Lilly on 6 Dec 2021


  • 5

    Posted by Donna Bowen on 29 Nov 2021

    This was my first order and I was impressed with the entire process. My plants arrived early and are all very healthy. The cup was packed so it's more than enough. The leaves are smaller than what I expected but I found a way to keep it contained in one area and one of my fish has become the gardener and tends to it all day.

  • 4
    I had hoped the leaves would be a little bigger

    Posted by Cecilia Larimer on 13 Nov 2021

    Suuuuuper tiny leaves, smaller than I expected. Because they were so small, the flow coming out of my filter kept pushing them down under the surface of the water! I am new to floating plants so perhaps there is a way to prevent this. Sadly, I ended up just scooping out as much as I could and scrapping it.

  • 5
    Exactly what my tank needed. Fast delivery. Nice packaging.

    Posted by Kaylon Mckenzie Webb on 11 Nov 2021


  • 4
    Duck weed

    Posted by Drake Heinz on 9 Nov 2021

    I severely underestimated the messiness and the power of the duckweed. It took days but I finally got it contained in tube circles and it looks great. Had to get rid of a bunch bit controlled its a very good addition to the top of the water and my betta loves it.

  • 5

    Posted by Honest reviewer on 11 Oct 2021

    Showed up a day earlier than expected and healthy. I will definitely be ordering from this site in the future.

  • 5
    Great product!

    Posted by Zach on 17 Aug 2021

    Duckweed came perfectly packaged and all in hood healthy condition! I emptied mine into an empty (just water) holding aquarium for a few days and had absolutely no snails in my particular batch! Looks amazing on the water, bright green healthy plants! Thanks M.A.!

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!