Hasemania nana
| Scientific name | Hasemania nana |
|---|---|
| Descriptor | Lütken |
| Year of description | 1875 |
| IUCN category (World) | LC |
| Family | Characidae |
| Genus | Hasemania |
Introduction
Hasemania nana is a little fresh water fish from the Amérique du Sud.
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Who is it?
Morphology
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Average size3 cm
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Maximum size5 cm
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Longevity4 year
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Average size3 cm
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Maximum size5 cm
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Longevity4 year
How to recognize Hasemania nana ?
Hasemania nana measures around 3 cm. The females are more imposing and some specimens can reach 5 cm. This fish is bicolore with a predominantly jaune and orange body.
Sexual dimorphism
The female is bigger than the male.
The females have a more rounded abdomen than the males, they are generally stockier. This characteristic is exacerbated in the period of reproduction.
Behaviour & Life cycle
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dietomnivorous with carnivorous tendency
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Sociabilityliving in shoals
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territorialNo
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Way of livingdiurnal
Hasemania nana is a fish living in shoals naturally found at mid-depth. This species is omnivorous with carnivorous tendency . Measuring only a few centimeters, this small species tends to be discreet and hide in the presence of larger neighbors.
n general, this species does not care much about other animals crossing its path.
Reproduction
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Reproductionovipare qui pond sur substrat découvert
Hasemania nana is a fish 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?
Conservation status of populations (IUCN)
Where to see this species?
What is its habitat?
Natural environment characteristics
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Temperature22 - 26 °C
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pH (acidity)6 - 7
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gh (hardness)3 - 8
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FlowMedium
Biotope presentation
This species lives near large roots, in which it can find refuge in case of danger. This type of habitat is often found not far from the banks.
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
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Min volume100 liters
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Population min5
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Temperature22 - 26 °C
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pH (acidity)6.8 - 7.2
Characteristics
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Difficulty breedingeasy
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Robustnessrobust
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Behaviourpeaceful
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Availabilitystandard
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 Hasemania nana
Hasemania nana is a species which lives naturally at a temperature between 22 °C and 26 °C. For proper maintenance, the temperature should never exceed the 29°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.
Cohabitation & Environment
Being a living in shoals fish, it is advisable to install at least 5 individuals in an aquarium of 100 liters minimum. Group maintenance is a prerequisite to ensure their well-being. Lonely individuals tend to quickly become stressed and become especially susceptible to disease. Although sometimes certain groups can "merge", mixing several gregarious species living in the same zone of life is not recommended if the volume is not consequent. Hasemania nana needs a large living space, therefore it is advisable to keep it in an aquarium with a frontage of at least 80 cm.
Hasemania nana is a peaceful species that generally does not exhibit behavioral problems in a community aquarium.
Males have the particularity to be particularly oppressive with females. This behavior can tire the females to the point that it sometimes leads to their death. It is important to set up a planted aquarium with many refuges.
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
Hasemania nana is omnivorous with carnivorous tendency.
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.
Food recommendations from our partner JBL - Products PRONOVO
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Granules
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Flakes
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Sticks
Reproduction protocol
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Maintenance difficultymoderate
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egg-laying protectionYes
Reproduction of this species in an aquarium is considered moderate. Ideally, it takes place at a temperature of around 26 ° C for a pH of 6 .
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
Jérôme Picard
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
Where to see this species?
Scientific partners
Species of the same family