Josh's Frogs

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Duckweed - Lemna minor (4 oz. cup)

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About This Product

Species Name: Lemna minor

Common Name: Duckweed

Defining Characteristics: 

  • Small, oval-shaped leaf no more than 1/4 inch long
  • Floats on the surface of water
  • Often used in ponds & aquariums

Tank Position: Surface

Josh's Frogs offers a wide variety of aquarium and fish supplies for all of your aquatic needs.

Temperature Requirement (°F): 40-90°

Growing Conditions: Free-floating 

Lighting: Low - Moderate

pH requirements: 6.0 - 8.5

CO2 Requirements: Low 

Growth Rate: Very Fast 

Height: N/A 

Origin: North America 

Regional Locality: Worldwide distribution in ponds or slow-moving habitats

USDA Hardiness Zone: 4-10

Suggested Animal Terrarium/ Vivarium Use:


  • Frogs & Toads ✔
  • Lizards & turtles ✔
  • Aquatic Set-ups ✔

Care Notes: Multiplies very rapidly—needs to be thinned out periodically, especially if growing other types of plants or feeding flake foods to fish, etc. Makes a great treat for goldfish and aquatic turtles.

Shipping Notes: As a good practice, Josh's Frogs recommends washing all plants thoroughly and removing as much soil as possible with dechlorinated water before placing them in their final home. 


This product ships to your doorstep. Most orders placed before 2pm ET on business days will ship out the same day.

Import/export restrictions on this product require that it can only be shipped to destinations within the United States.

Restrictions on this product that prohibit shipping to the following states: HI.

Live Arrival Guarantee

This product is covered under our Live Arrival Guarantee. If your insect/animal does not arrive in good health, we'll make it right, provided the following criteria are met:

  • If shipped Two Day, the temperature experienced during shipping must remain between -20 and 120 °F.
  • If shipped Next Day, the temperature experienced during shipping must remain between -40 and 120 °F.
  • If shipped Ground, the temperature experienced during shipping must remain between 20 and 85 °F.

You'll be notified during the checkout process if your purchase qualifies for our guarantee.

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