Wolffia arrhiza

Aquarium suitability: yes
Usage: Water surface
Difficulty: very easy
Growth: fast

Availability [?]: 
  • rarely or not available commercially
  • occasionally available from other aquarists

Habit, plant type:

  • free-floating (surface)
Botanical name [?]: Wólffia arrhiza (L.) Horkel ex Wimm.

Major group (unranked): Seed plants: Flowering plants (Angiosperms)
Order: Alismatales
Family: Araceae
Genus: Wolffia


Watermeals of the genus Wolffia are the smallest flowering plants in the world. They have an extremely simplified rootless roundish vegetation body often under a millimetre in size.
Wolffia arrhiza is distributed in Africa, Europe, Asia, Australia and South America (near Rio de Janeiro), from tropical to temperate climates. In Germany it is mainly found in the area of the rivers Spree and Havel and in the lower reaches of the Weser river. This watermeal can be found in stagnant waters protected from wind, and frequently together with duckweed species of the genera Lemna and Spirodela).

- To be continued -

Light low to high 
Temperature tolerance 4 to 32 °C
Optimum temperature 20 to 28 °C
Carbonate hardness 0 to 21 °dKH
pH value 5 to 8 
Carbon dioxide (CO2) 2 to 40 mg/l
Nitrate (NO3-) 10 to 50 mg/l
Phosphate (PO43-) 0.1 to 3 mg/l
Potassium (K+) 5 to 30 mg/l
Iron (Fe) 0.01 to 0.5 mg/l

Growth: fast

Propagation: Fragmentation

Can grow emersed?: no

Suited for outdoor cultivation / ponds: yes

Winter hardiness: hardy in Germany

There is no detailled information for cultivating this plant yet.
There are no further design information for this plant yet.
There are no images in this gallery.
Trading possible?
This plant is a part of the following tanks:
You can embed this entry directly into another web site or forum. Just copy and paste the following code:

Embed as HTML code

<a href="" target="_blank"><img alt="Wolffia arrhiza" title="Wolffia arrhiza" src="" /></a>

Embed as BB code


Embed in Flogrow Forum

[widget=aquaticplants/wolffia-arrhiza]Wolffia arrhiza[/widget]


There are no reviews so far. Do you want to write the first one?

Wasserpflanzen sind ein fester Bestandteil der meisten Aquarien. Beim Aquascaping, dem Naturaquarium, Biotop-Aquarium oder dem Gesellschaftsaquarium sind Wasserpflanzen nicht nur für die Wasserqualität entscheidend, sondern sorgen auch stets für eine optische Aufwertung des Aquariums.