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francais anglais

Freshwater   Plants

(Riccia fluitans)


Alternative species (click on the thumbnail to see the card)

  • None


Scientific name
Riccia fluitans

Common name


what are his countries of origin?

Origin: Northern France, Europe, America, Asia

Ideal fertilization

how to fertilize this plant?

CO2: 10-40mg/l
Nitrates (NO3): 10-50mg/l
Phosphates (PO4): 0.1-3mg/l
Potassium (K): 5-30mg/l
Iron (Fe): 0.01-0.5mg/l


which group is this plant?



what is the type of plant?

Floating Plant


What are the Water parameters for the maintenance of this plant?

T°: 10 to 30°C or 50 to 86°F
pH: 5 to 8
Hardness: 1 to 10°dGH





what brightness is needed?



what is the maximum size of the plant?

3 cm (1.2")


in which area of the aquarium install this plant?



how fast does this plant grow?



Who is the Riccia fluitans?


Who is the Riccia fluitans?

It can serve as a refuge for small fry and allow to have a supply of infusoria that develop tremendously in this foam. It is also very successful in shrimp aquariums or breeding tanks. In addition, it will perfectly and naturally decorate your spaces between roots and rocks.

Curiosity of this plant: it is at the same time a floating plant, moss and fern! It is very adaptable and will arrange according to your desires! Thus, it can be planted directly on the ground of the aquarium to form a beautiful round fern, or be used to shade the surface fish like a floating plant or be attached to the decoration and hang on it like foam. It is therefore ideal for aquascaping (we can sometimes see beautiful bins just with the decoration and this plant!). Very rustic, it can also be installed in paludarium.

Riccia fluitans is an interesting alternative to Java moss.

Planting and maintenance

How to plant and maintain the Riccia fluitans?

Planting and maintenance

How to plant and maintain the Riccia fluitans?

The temperature of the water is an important criterion for the good maintenance of the plant: it must constantly be around 14 to 25°C or 57 to 77°F.

A contribution of Co2 is also essential for the survival and growth of Riccia fluitans. To do this, use a Co2 diffuser. However, if the plant is used as a floating plant, you do not need Co2 because it will absorb it in the air.

By the way, if you use it as a floating plant, pay attention to the current of your aquarium. Indeed, the foam breaks up under the power of the current and eventually disappears. So, very little surface current is required. To remedy this, for example, you can direct the cane of the filter to the edge of the aquarium to «break» the current without reducing the power of filtration.

In paludarium, this plant will remain submerged. It will therefore be used as a surface or bottom plant in the submerged zone. The advantage is that it is not very high and can grow in small volumes.


How to farm the Riccia fluitans?


How to farm the Riccia fluitans?

The reproduction of Riccia fluitans will be faster and more efficient as a floating plan.

To optimize its multiplication, it is important to make an iron contribution, either thanks to frequent water changes or thanks to fertilizing products (attention however to the use of these if there are fish in your aquarium).

In good conditions, this plant grows very quickly. It must therefore be ensured that it does not overshadow fish or plants when it is used as a floating plant.

Good To know

Find all additional information!

Good To know

Find all additional information!

Small curiosity: if the Riccia fluitans flourishes in the aquarium thanks to good maintenance conditions (lighting, iron), you will see small bubbles of oxygen appear at the tip of the leaves. It’s a sign of good health!

Yours photos!


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