Duckweed (Lemna Minor)

Duckweed (Lemna Minor)
Plant Type:
Free-floating (surface)
Max height: <1 cm
Carbon Dioxide (CO2):
0 to 40 mg/l
4 to 30 °C

It is a floating freshwater aquatic plant, with one, two or three leaves, every one with a single hanging root in the water; as more leaves develop, the plants divide and emerge as separate individuals. Duckweed is adaptable, rapid-developing, hardy, and has no particular necessities, but is commonly considered a pest.

In appropriate situations it spreads fast, and a small croup may grow to cover the surface of a median aquarium within a week. The lightly colored green, oval leaves are 0.12 in (3 mm) long and the root is 1-2 cm in length.

If regularly trimmed, the plant may be very effective in an open type aquarium. Duckweed appears better as a decorative plant when kept together with other floating species, such as water lettuce (Pistia stratiotes), Azolla spp., or Salvinia spp. It regenerates usually by division.

Common names:

  • Common Duckweed