Cryptocoryne x willisii "nevillii"

Willis' water trumpet

Cryptocoryne x willisii "nevillii"

Willis' water trumpet

  • Low-growing green Crypt
  • Robust and undemanding
  • Elongate ovate leaves
  • Lawnlike growth habit
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Description

This Cryptocoryne is a time-tested, undemanding aquarium plant that forms a dense group or even a lawn over time through runners. It was long popular under the false name "Cryptocoryne nevillii", which stands for a different species. The plant belongs to Cryptocoryne x willisii, a complex of natural hybrids of Cryptocoryne parva with other species from Sri Lanka such as C. beckettii and C. walkeri. The forms of C. x willisii are reminiscent of the tiny Cryptocoryne parva, but are larger and more vigorous. Cryptocoryne x willisii "nevillii" has medium green underwater leaves, which can also show slightly reddish-brown tones. In the submerged form, the plant usually grows to a height of around 5 to 15 cm. Plants that have been supplied with plenty of nutrients and grown over a longer period of time can possibly reach a height of around 20 cm. However, this Cryptocoryne is usually sold in the terrestrial form (emersed form) and is then often up to around 25 cm high. However, the submerged leaves newly formed in the aquarium remain shorter.
Cryptocoryne x willisii "nevillii" differs from the similar C. x willisii "lucens" in having shorter, more ovate leaf blades.

Willis' water trumpet is an undemanding, relatively slow-growing aquarium plant that tolerates different water parameters. Additional CO2 is not absolutely necessary, but promotes growth, as does the supply of macro and micronutrients via the substrate. The light requirement is not high, but moderate light intensity is recommended. The plant tolerates a temperature range of 15 - 30 °C; 22 - 28 °C is optimal. Like many other Cryptocorynes, C. x willisii "nevillii" needs some time to acclimatise and often only starts to grow significantly after a month. Over time, a dense group of leaf rosettes will develop due to the many underground runners.

The easy-care Cryptocoryne x willisii "nevillii" can be used in a variety of ways in tropical freshwater aquariums, as a group in the foreground to midground and as a higher lawn if a larger number of individual plants are planted. With its relatively slow growth, it is easy to handle.

This Cryptocoryne is a very popular, undemanding, low-growing aquarium plant that reproduces through runners, forming nice ground-covering carpets. It was long known under the name "Cryptocoryne nevillii", and sometimes still is. In 1976, Niels Jacobsen found out that it really belongs to the hybrid complex of Cryptocoryne x willisii, whereas Cryptocoryne nevillii is the name of an altogether different species that has nothing to do with C. x willisii.

Cryptocoryne parva was also (and sometimes still is) erroneously called "Cryptocoryne nevillii" in the aquarium hobby.

The group of C. (read more)

Misapplied names Cryptocoryne nevillii
Complete botanical name Cryptocóryne × willísii Reitz
Family Araceae
Genus Cryptocoryne
Difficulty easy
Usage Midground, Nano tanks, Foreground, group, Foreground, ground cover
Growth slow
pH value 4 - 8
Temperature tolerance 15 - 30°C
Carbonate hardness 1 - 18°dKH
General hardness 0 - 30°dGH
Propagation Runners, Rhizomteilung, Splitting, cutting off daughter plants
Can grow emersed? yes
Source Flowgrow
Misapplied names
Cryptocoryne nevillii
Complete botanical name
Cryptocóryne × willísii Reitz
Family
Araceae
Genus
Cryptocoryne
Difficulty
easy
Usage
Midground, Nano tanks, Foreground, group, Foreground, ground cover
Growth
slow
pH value
4 - 8
Temperature tolerance
15 - 30°C
Carbonate hardness
1 - 18°dKH
General hardness
0 - 30°dGH
Propagation
Runners, Rhizomteilung, Splitting, cutting off daughter plants
Can grow emersed?
yes
Source
Flowgrow

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