harrer's earth eater

Scientific name Geophagus harreri
Descriptor Gosse
Year of description 1976
IUCN category (World) LC
Family Cichlidae
Genus Geophagus
Geophagus harreri Geophagus harreri

Introduction

Geophagus harreri, commonly known as harrer's earth eater, is a fresh water fish from the Amérique du Sud.

This sheet is currently being prepared. The texts currently proposed come from our data model or are being drafted. To request priority for this content, you can write to us HERE.

Who is it?

Morphology

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

How to recognize the harrer's earth eater ?

The harrer's earth eater measures between 20 and 25 cm.

Behaviour & Life cycle

  • diet
    omnivorous with carnivorous tendency
  • Sociability
    living as a couple or in a group
  • territorial
    Yes
  • Way of living
    diurnal

The harrer's earth eater is a fish living as a couple or in a group naturally found on the bottom. This species is omnivorous with carnivorous tendency .

The harrer's earth eater is a territorial animal that does not tolerate any incursions into its living area. It is particularly virulent against other territorial species and it can provoke heated fights. Relationships between conspecifics are also hectic, with each seeking to secure its place. Parrying or even sustained fighting can occur between dominant males.

Reproduction

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
    27 - 32 °C
  • pH (acidity)
    6 - 7
  • gh (hardness)
    1 - 10
  • Flow
    Strong

Biotope presentation

The harrer's earth eater 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 .

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
    800 liters
  • Population min
    2
  • Temperature
    27 - 32 °C
  • pH (acidity)
    6 - 7

Characteristics

  • Difficulty breeding
    hard
  • Robustness
    robust
  • Behaviour
    moderately 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 the harrer's earth eater

The harrer's earth eater is a species which lives naturally at a temperature between 27 °C and 32 °C. For proper maintenance, the temperature should never exceed the 35°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 harrer's earth eater is a species whose maintenance is rather reserved for informed aquarists . It can only be successfully carried out by carrying out a minimum of documentation work. Special husbandry conditions can easily lead to the death of the species or other animals.

Cohabitation & Environment

In a community aquarium context, this species should be kept in a minimum volume of 800 liters.

The harrer's earth eater has a strong character. Its maintenance with territorial neighbors in an inadequate volume will generate stress. ndeed, it will not hesitate to fight to protect its territory and to dominate its neighbors. It is important to think carefully about the constitution of the future population to avoid this kind of inconvenience. The aquarium should be arranged so that each species can comfortably define its own territory.

The harrer's earth eater is a fish that generally lives in groups outside of the reproduction periods. If you want to reproduce them and have a good chance of forming a couple, it is recommended to keep at least 5 individuals.. In a community aquarium, the chances of survival of the larvae are almost null. After a few spawns, it is preferable to isolate the couple or to separate from the other members of the group.

The hierarchical organization and the aggressiveness between fellow fish can weaken certain individuals, the presence of hiding places becomes then necessary. If you wish to add new members, it is better to introduce younger fish. They will have a better chance of integrating into the new balance.

As previously said, The harrer's earth eater 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.

To best reproduce the biotope of this species, you can cover the bottom of the tank with sand and put a pile of stones to form caves.

Tips for feeding

The harrer's earth eater is omnivorous with carnivorous tendency.

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
    No

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.

These animals might interest you

To go further

Species of the same family

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

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.

Interact with Fishipedia

To get in touch with our team or participate in our project.

Template and content © Fishipedia - Unauthorized reproduction without prior request - ISSN 2270-7247 - Last modification 11/11/2023

Scientific partners

Species of the same family

Same genus

  • {{name}}

    {{#street_number}}{{street_number}}, {{/street_number}}{{#route}}{{route}}{{/route}}
    {{postal_code}} {{town}}

    {{#phone}}{{phone}}{{/phone}}{{^phone}}-{{/phone}}