Clea helena

Scientific name Clea helena
Descriptor von dem Busch
Year of description 1847
IUCN category NE
Family Nassariidae
Genus Clea
Clea helena Clea helena

Introduction

Clea helena is a little fresh water mollusc from the Asia.

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Who is it?

Morphology

  • Type
  • Size
    1.5 - 2 cm
  • Colours
    dull
  • Mimicry
    plants
  • Type of mouth
    radula
  • Chromatophores
    No
  • Motif
    diagonal stripes
  • Type
  • Size
    1.5 - 2 cm
  • Colours
    dull
  • Mimicry
    plants
  • Type of mouth
    radula
  • Chromatophores
    No
  • Motif
    diagonal stripes

How to recognize Clea helena ?

Clea helena measures between 1.5 and 2 cm. Given its small size, this species is commonly referred to as a "dwarf" animal. The has diagonal stripes.

Behaviour & Life cycle

  • Sociability
    solitary
  • Way of living
    diurnal
  • Venomous
    No
  • Diet
    predator

Clea helena is a mollusc solitary naturally found on the bottom. This species is carnivorous . Naturally, it tends to dig into the sand and transform its environment. Measuring only a few centimeters, this small species tends to be discreet and hide in the presence of larger neighbors.

Although Clea helena is non-territorial, it is sometimes aggressive towards other species.

Reproduction

  • Reproduction
    ovipare qui pond sur substrat découvert

Clea helena is a mollusc ovipare qui pond sur substrat découvert.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

Where to see this species?

What is its habitat?

Natural environment characteristics

  • Temperature
    22 - 28 °C
  • pH (acidity)
    6.2 - 8.2

Biotope presentation

Species of the same biotope

Magasins partenaires proches

Main recommendations for fishkeeping

Deontology

In order to preserve wildlife, if you acquire this animal, it must not be released into the wild. See also, the Fishipedia charter.

Fishipedia supports the practice of responsible and environmentally friendly aquarium keeping. We encourage maintenance if it is motivated by a desire to understand the biological functioning of living things and if it is done with respect for animal life.

We believe that aquaristics is an opening to the discovery of aquatic environments, especially freshwater, and that this knowledge is necessary to better protect and respect these environments. Logically, we refute the compulsive purchase of animals that would not find a sufficient and / or adapted place in the host aquarium.

Our recommendations

  • Min volume
    10 liters
  • Population min
    1
  • Temperature
    22 - 28 °C
  • pH (acidity)
    6.8 - 7.2

Characteristics

  • Behaviour
    slightly aggressive
  • Robustness
    robust

General reminders

It is strongly advised to read the complete dedicated file and to get information on the feedbacks of maintenance of the envisaged animal, this to avoid any potential conflict whose end result is generally the death of the individual (or the other inhabitants). It is important not to overload your aquarium to limit pollution. This will make maintenance easier.

In nature, animals are subject to weather conditions and live in waters with variable characteristics. The recommendations offered by our team for aquarium maintenance are a guidance and cannot be assimilated to scientific datas.

General reminder on maintenance datas

Le démarrage d'un aquarium est une partie primordiale pour l'équilibre et le bien-être des poissons. Lorsque l'on met en eau un aquarium, l'eau passe naturellement par un cycle biologique : le cycle de l'azote. Celui-ci dure environ trois semaines. Tous les 2 jours, nous vous conseillons de tester votre eau jusqu'à ce que le taux de nitrite soit à zéro pendant plusieurs jours d'affilée.

Pour accélérer ce cycle, vous pouvez utiliser un activateur de bactéries comme JBL Denitrol. Cette solution riche en bactéries vivantes et enzymes permet une mise en place rapide du cycle de l'azote. Les poissons peuvent alors être introduits plus rapidement.

Il est important de tester l'eau de son aquarium régulièrement pour maintenir un environnement sain pour les poissons et les autres habitants. Les tests d'eau permettent de mesurer les niveaux de différents paramètres tels que le pH, la dureté totale, ainsi que les taux de nitrates, de nitrites et d'ammoniaque.

Pour réaliser ces tests, vous pouvez utiliser des produits d'analyse spécialisés tels que JBL ProScan qui permet de réaliser un diagnostic de l'eau directement via un smartphone. Il existe également des coffrets de tests plus classiques de bandelettes, comme JBL PROAQUATEST.

En cas d’usage de l’eau du robinet, vous pouvez utiliser un conditionneur d’eau de type Biotopol de JBL pour éliminer les substances nocives comme le chlore, le cuivre, le plomb et le zinc. Les conditionneurs d'eau garantissent une meilleure santé aux poissons et une meilleure croissance des plantes.

Chlorine and chloramine are dangerous for the health of animals. Used to disinfect water, these agents are present in significant quantities in tap water. We recommend using an anti-chlorine agent every time you change the water. In addition to chlorine, treatments and medicines sold for aquarium use sometimes contain dangerous heavy metals in high doses.

Specific needs for Clea helena

Clea helena is a species which lives naturally at a temperature between 22 °C and 28 °C. For proper maintenance, the temperature should never exceed the 31°C for long periods. Nitrate levels should remain below 50mg/L. To keep the water clean and unpolluted, plan on changing 20% to 30% of the water volume each month.

Breeding this species is accessible to any hobbyist. It is recommended to follow some basic rules and to be rigorous to achieve a good maintenance.

This species is particularly common in the aquarium trade. Animals from long-term breeding are usually acclimatized at a temperature of about 26 °C in neutral water.

Formal incompatibilities

Be careful, Clea helena is incompatible with molluscs.

Cohabitation & Environment

In a community aquarium context, this species should be kept in a minimum volume of 10 liters.

It should be noticed that this species should not be kept with large crustaceans or fish, as it would become a prey of choice. Smaller species should preferably be inserted in the aquarium some time before the larger ones. Moreover, if you want to breed it, it is better to put them in a specific aquarium.

Tips for feeding

Clea helena is carnivorous.

You should not overfeed your residents to avoid polluting the water. For most species, it is better to feed a few small portions each day rather than one large meal.

Reproduction protocol

  • Maintenance difficulty
    moderate
  • egg-laying protection
    Yes

Hybridization risks

In general, it is advised not to mix several species of the same genus or different varieties of the same species, to avoid the risks of hybridization.

To go further

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Translation

Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

Bibliographic references

Quid Est Clea helena? Evidence for a Previously Unrecognized Radiation of Assassin Snails (Gastropoda: Buccinoidea: Nassariidae) - Ellen E Strong - Lee Ann Galindo - Yuri I Kantor - PeerJ - 2017. 5:e3638. Published 2017 Aug 11. doi:10.7717/peerj.3638

First non-native establishment of the carnivorous assassin snail, Anentome helena (von dem Busch in Philippi, 1847) - Ting Hui Ng - Junn Kitt Foon - Siong Kiat Tan - Mark K.K. Chan - Darren C.J. Yeo - Reabic - 2016. 5:e3638. Published 2017 Aug 11. doi:10.7717/peerj.3638

Revised Classification, Nomenclator and Typification of Gastropod and Monoplacophoran Families - Philippe Bouchet - Jean-Pierre Rocroi - Bernhard Hausdorf - Andrzej Kaim - Yasunori Kano - Alexander Nützel - Pavel Parkhaev - Michael Schrödl - Ellen E. Strong - bioOne - 2017. 5:e3638. Published 2017 Aug 11. doi:10.7717/peerj.3638

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Where to see this species?

Scientific partners

Species of the same biotope

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