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Ceratopteris cornuta

Broad-leaf water sprite

Ceratopteris cornuta

Broad-leaf water sprite

  • Fast-growing aquatic fern
  • Light green
  • Undemanding
  • Suitable as submerged and floating plant
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Description

Ceratopteris cornuta is a water sprite species with markedly broader leaf lobes than the much more filigree "Sumatra fern". This medium large aquatic fern grows as submerged, rooted plant as well as free-floating plant. It gets at least 30 cm tall. On nutrient-rich, wet bottom it develops emersed spore-bearing leaves that become considerably longer than the submerged ones.

Ceratopteris cornuta is undemanding and tolerates harder water; medium lighting is sufficient. The optimum temperature lies between 22-28 °C. Good CO2 and nutrient supply enhances its already fast growth. This aquatic fern multiplies by many adventitious plantlets on older fronds.

This water sprite looks well in the midground as solitary plant or loose group; it is recommendable for initial planting of new tanks and also for beginners. Used as floating plant, it is ideal for labyrinth fish breeding tanks.

The water sprite Ceratopteris cornuta has been placed in the species C. thalictroides by various authors. In aquaristics, however, those forms with more coarsely pinnate/lobed leaves are known under the name of C. cornuta, and those with more finely pinnate leaves as C. thalictroides.
Ceratopteris richardii is quite similar to C. cornuta and can only safely be discerned by close examination of the spores. This species is used as model organism in plant genetics. It is even possible that C. richardii is kept in the hobby, however, that it is mistaken for C. cornuta.

Like Ceratopteris thalictroides, C. cornuta can be planted in the substrate as well as cultivated as a floating plant.


To be continued ...

Synonyms Pteris cornuta P. Beauv., Ceratopteris thalictroides (L.) Brongn. f. cornuta (P. Beauv.) Glück
Complete botanical name Ceratópteris cornúta (P. Beauv.) Le Prieur
Family Pteridaceae
Genus Ceratopteris
Difficulty easy
Usage Background, Plant for spawning, Midground, Specimen plant, Water surface
Growth very fast
pH value 5 - 8
Temperature tolerance 18 - 30°C
Carbonate hardness 0 - 21°dKH
General hardness 0 - 30°dGH
Propagation Proliferating leaves, Spores
Can grow emersed? yes
Source Flowgrow
Synonyms
Pteris cornuta P. Beauv., Ceratopteris thalictroides (L.) Brongn. f. cornuta (P. Beauv.) Glück
Complete botanical name
Ceratópteris cornúta (P. Beauv.) Le Prieur
Family
Pteridaceae
Genus
Ceratopteris
Difficulty
easy
Usage
Background, Plant for spawning, Midground, Specimen plant, Water surface
Growth
very fast
pH value
5 - 8
Temperature tolerance
18 - 30°C
Carbonate hardness
0 - 21°dKH
General hardness
0 - 30°dGH
Propagation
Proliferating leaves, Spores
Can grow emersed?
yes
Source
Flowgrow

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