Geophagus pellegrini

Scientific name Geophagus pellegrini
Descriptor Regan
Year of description 1912
IUCN category DD
Family Cichlidae
Genus Geophagus
Geophagus pellegrini Geophagus pellegrini

Introduction

Geophagus pellegrini is a fresh water fish from the Amérique du Sud.

Who is it?

Morphology

  • Average size
    20 cm
  • Maximum size
    25 cm
  • Longevity
    8 year
  • Average size
    20 cm
  • Maximum size
    25 cm
  • Longevity
    8 year

How to recognize Geophagus pellegrini ?

Geophagus pellegrini measures between 20 and 25 cm.

Behaviour & Life cycle

  • diet
    carnivorous, scavenger, soil-eating and planctophage
  • Sociability
    solitary
  • territorial
    Yes
  • Way of living
    diurnal

Geophagus pellegrini is a fish solitary naturally found on the bottom. This species is carnivorous, scavenger, soil-eating and planctophage . Naturally, it tends to dig into the sand and transform its environment.

Although slightly territorial, Geophagus pellegrini is a rather peaceful animal that generally behaves in a peaceful manner with other species. It should be noted that it is sometimes less tolerant with its conspecifics. Parades or even small jousts may occur between different members of the group until a hierarchy is established.

Reproduction

  • Migratory species
    No

Geophagus pellegrini is a fish ovipare incubateur buccal.

Harmless species

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

Where to find it?

What is its habitat?

Natural environment characteristics

  • Temperature
    20 - 25 °C
  • pH (acidity)
    6.5 - 7
  • gh (hardness)
    2 - 5
  • Flow
    Strong

Biotope presentation

Geophagus pellegrini prefers well oxygenated waters in current areas and rapids. It frequents fast flowing waters where the bottom is strewn with pebbles, wood or leaves carried by the current. It can be found not far from waterfalls and in mossy areas nearby.

This animal evolves in areas characterized by a strong presence of vegetation (aquatic and marsh plants, decaying organic matter, roots...).

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
    500 liters
  • Population min
    2
  • Temperature
    20 - 25 °C
  • pH (acidity)
    6.5 - 7

Characteristics

  • Difficulty breeding
    modéré
  • Robustness
    sensible
  • Behaviour
    peaceful

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 Geophagus pellegrini

Geophagus pellegrini is a species which lives naturally at a temperature between 20 °C and 25 °C. For proper maintenance, the temperature should never exceed the 28°C for long periods. Geophagus pellegrini is sensitive to abrupt changes in parameters as well as to chemicals. Its acclimation in an aquarium must be done with special care to prevent it from developing diseases or weaknesses. Nitrate levels should remain below 25mg/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. This animal is somewhat more sensitive than others to environmental influences and water quality.

Builder fish

This fish has the particularity to dig its territory in the sand. Therefore, it is likely to uproot plants and modify the decor of the aquarium.

Formal incompatibilities

Be careful, Geophagus pellegrini is incompatible with plants.

Cohabitation & Environment

In a community aquarium context, this species should be kept in a minimum volume of 500 liters.

Fearful by nature, it is advised not to let Geophagus pellegrini cohabit with large territorial species or with too aggressive fish. It can easily evolve with territorial neighbors with a peaceful temperament or with non-territorial species.

Be careful to plan an adequate space for each territorial species. Each species should have a surface and a decor allowing it to juxtapose its territory with that of its neighbors.

As previously said, Geophagus pellegrini is a species that lives naturally in the current. Thus, we advise the installation of an oversized filtration system (10 to 20 times the volume of the tank) in order to guarantee a strong current and especially a strong oxygenation. A venturi system will improve the dissolved oxygen rate during summer.

Be careful, this species does not appreciate plants and will end up destroying, uprooting or nibbling them. It will not be possible to make an aquarium planted in its presence.

Tips for feeding

Geophagus pellegrini is carnivorous, scavenger, soil-eating and planctophage.

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

  • egg-laying protection
    Yes

Reproduction of this species in an aquarium is considered moderate. Ideally, it takes place at a temperature of around 25 ° C for a pH of 6.5 .

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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To go further

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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.

Benoit Chartrer

Benoit Chartrer

Robert Allgayer

Robert Allgayer

In collaboration with : Fédération Française Aquariophilie

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Template and content © Fishipedia - Unauthorized reproduction without prior request - ISSN 2270-7247 - Last modification 01/04/2023

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