Aulonocara rostratum

Scientific name Aulonocara rostratum
Descriptor Trewavas
Year of description 1935
IUCN category (World) LC
Family Cichlidae
Genus Aulonocara
Aulonocara rostratum Aulonocara rostratum

Introduction

Aulonocara rostratum is a fresh water fish from the Africa.

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Who is it?

Morphology

  • Average size
    18 cm
  • Maximum size
    20 cm
  • Longevity
    8 year
  • Shape
    Oval
  • Average size
    18 cm
  • Maximum size
    20 cm
  • Longevity
    8 year
  • Shape
    Oval

How to recognize Aulonocara rostratum ?

Aulonocara rostratum measures around 18 cm. The dominant males can however reach 20 cm.

Sexual dimorphism

The adult male is bigger than the female.

Behaviour & Life cycle

  • diet
    carnivorous
  • Sociability
    living in small groups
  • territorial
    Yes
  • Way of living
    diurnal

Aulonocara rostratum is a fish living in small groups naturally found near the bottom. The members of each group are organized around a well established hierarchy. This species is carnivorous .

This species is territorial and does not appreciate the presence of intruders nearby, especially animals with similar behavior. It can also be virulent toward conspecifics. However, Aulonocara rostratum has little concern for non-territorial animals.

Reproduction

  • Reproduction
    ovipare incubateur buccal
  • Polygamy
    Yes

Aulonocara rostratum is a fish ovipare incubateur buccal. In this species, the dominant males are polygamous and reproduce each season with several females.

Harmless species

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

Where to find it?

Conservation status of populations (IUCN)

World : LC

What is its habitat?

Natural environment characteristics

  • Temperature
    23 - 28 °C
  • pH (acidity)
    7.5 - 8.5
  • gh (hardness)
    8 - 15
  • Flow
    Slow and Stagnant

Biotope presentation

Species of the same biotope

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
    700 liters
  • Population min
    4
  • Temperature
    23 - 28 °C
  • pH (acidity)
    7.5 - 8.5

Characteristics

  • Difficulty breeding
    moderate
  • Robustness
    tolerant
  • Behaviour
    slightly aggressive

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 Aulonocara rostratum

Aulonocara rostratum is a species which lives naturally at a temperature between 23 °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.

The breeding of this species is accessible on condition of being well informed about its needs in aquarium . Any cohabitants must be chosen with care to avoid the loss of animals.

Cohabitation & Environment

Being a living in small groups fish, it is advisable to install at least 4 individuals in an aquarium of 700 liters minimum (for 150 cm of frontage). Group maintenance is a prerequisite to ensure their well-being. Lonely individuals tend to quickly become stressed and become especially susceptible to disease.

Aulonocara rostratum may show signs of aggression. In general, this species should not be mixed with large territorial species or other overly aggressive species, in order to avoid possible stress or even injury.

However, it can coexist with other species with a peaceful temperament and with some slightly territorial neighbors, as far as the volume of the aquarium allows. It is important to avoid that two territorial species share the same living area in an aquarium of insufficient volume.

This fish being polygamous, the male must always be maintained with several females. A ratio of three females to one male seems to be a good compromise for the constitution of the group.

Basic water maintenance

Aulonocara rostratum naturally living in basic water, the presence of limestone rocks such as millstone or travertine will improve its environment. It is also advisable to add sand with a contribution of specific salts to stabilize the pH, to be gauged according to the hardness of the water used.

Tips for feeding

Aulonocara rostratum is carnivorous.

This species can eat dry food (flakes, pellets), fresh food and frozen food. To avoid deficiencies, it is recommended to vary the types of food.

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.

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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.

Robert Allgayer

Robert Allgayer

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.

In collaboration with : Fédération Française Aquariophilie

Bibliographic references

CONSERVATION PRIORITIES FOR FRESHWATER BIODIVERSITY IN THE LAKE MALAWI/NYASA/NIASSA CATCHMENT - Catherine A. Sayer - Amy F. Palmer-Newton - William R.T. Darwall - IUCN Cambridge - 2019. Cambridge, UK and Gland, Switzerland: IUCN. xii +214p. 978-2-8317-2020-3

A review of the sand-dwelling species of the genus Aulonocara, with the description of three new species. - Ad Konings - Cichlid Press - 1995. 6 The Cichlids Yearbook, volume 5

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Scientific partners

Species of the same family

Same genus

Species of the same biotope

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