Najas sp. "Roraima"

Aquarium suitability: yes
Usage: Background, Midground, Foreground, group
Difficulty: easy
Growth: fast
Range and localities: 

Brasilien: Roraima

Availability [?]: 
  • occasionally available commercially
  • occasionally available from other aquarists

  • Najas sp. from Roraima

Trader names [?]: 
  • Najas roraima

Habit, plant type:

  • stem
  • free-floating submerged plant
Major group (unranked): Seed plants: Flowering plants (Angiosperms)
Order: Alismatales
Family: Hydrocharitaceae
Genus: Najas


Najas sp. "Roraima" is a still unidentified water nymph from the Brazilian state Roraima. It was probably first introduced in the market from Japan, and it was only imported to Europe recently (2009?). Its leaves are rigid, curving, with a serrate margin, its stems ramify readily, and the plant is not as brittle and invasive as e.g. Najas guadalupensis. It resembles Najas indica a little. This plant's compact growth makes it especially decorative, as well as the dark brown colour of the leaf serra that gives the leaves a dotted pattern on light green to reddish-brown ground. The shoot tips may assume a wine-red hue under intensive light.

This Najas from Roraima does not form many roots, just like the other species of the genus. It grows freely floating just under the water surface as well as planted into the ground, and it can also be stuck in crevices in rocks or driftwood.

- to be completed -

Light medium to high 
Temperature tolerance 20 to 28 °C
Carbonate hardness 1 to 10 °dKH
pH value 5 to 7.5 
Carbon dioxide (CO2) 15 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, Cuttings, Splitting, cutting off daughter plants

Can grow emersed?: no

Suited for outdoor cultivation / ponds: unknown

Winter hardiness: unknown

There is no detailled information for cultivating this plant yet.
Aquascaping: well-branched, bushy

There are no images in this gallery.
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="Najas sp. &quot;Roraima&quot;" title="Najas sp. &quot;Roraima&quot;" src="" /></a>

Embed as BB code


Embed in Flogrow Forum

[widget=aquaticplants/najas-sp-roraima]Najas sp. "Roraima"[/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.