Macrobrachium vollenhovenii

Introduction

Morphology

Sexual dimorphism

Behaviour & Life cycle

• Sociability
  living in small groups
• territorial
  No
• Venomous
  No
• Way of living
  nocturnal

Reproduction

• Migratory species
  Yes

Harmless species

Conservation status of populations (IUCN)

Natural environment characteristics

• Temperature
  24 - 30 °C
• pH (acidity)
  7 - 8
• gh (hardness)
  10 - 24

Biotope presentation

Deontology

Respect for wildlife

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
  400 liters
• Population min
  3
• Temperature
  24 - 30 °C
• pH (acidity)
  7 - 8

Characteristics

• Type of maintenance
  Aquarium
• Maintenance difficulty
  hard
• Availability
  occasional
• Behaviour
  very aggressive
• Robustness
  robust
• Environment
  fresh water
• Breeding
  brackish water

General reminders

Before acquiring an animal

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.

Freshwater conditions

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

Setting up your aquarium

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.

Testing water parameters

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.

Water changes

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.

Precautions to be taken with chlorine

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 Macrobrachium vollenhovenii

Macrobrachium vollenhovenii is a species which lives naturally at a temperature between 24 °C and 30 °C. For proper maintenance, the temperature should never exceed the 33°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.

Maintenance difficulty

Macrobrachium vollenhovenii 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.

Occasionally available species

This species is generally available in specialized shops or from aquarium clubs. Specimens that have been bred for a long time are easier to breed, but special water parameters must be respected.

Precautions on copper

Copper is toxic to many invertebrates. Some fertilizers and aquarium foods contain copper sulfate and should be used with caution. Since Macrobrachium vollenhovenii are sensitive to copper, we do not recommend using these products in any form.

Cohabitation & Environment

Macrobrachium vollenhovenii is a crustacea which it is advisable to maintain in specific aquarium. Associating it with other species is not fundamentally impossible but a documentation work is necessary for the constitution of the population. Being a living in small groups crustacea, it is advisable to install at least 3 individuals in an aquarium of 400 liters minimum. The maintenance in groups allows to observe its natural behavior within the aquarium. Warning, mixing several species living in the same living area is not recommended if the volume is not significant. this crustacea being a predatory species, it is recommended to maintain it in a specific environment, without other species. Indeed, any crustacean or fish of lower size will become a potential prey. If you still try to associate it with other species, the cohabitants must be of a size at least comparable to the predator in a much larger volume. The aquarium can be provided with many hiding places and a large space to allow each individual to find refuge if necessary.

The males of this species do not support each other, the maintenance of several of them in the same tank is strongly disadvised.

Due to their fragile state during moulting, all crustaceans need an environment provided with hiding places (roots, pebbles, leaves, plants, etc.) to shelter in case of danger.

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

Macrobrachium vollenhovenii is omnivorous. This species can be fed with small crustaceans such as mussels, fish or even suitable freeze-dried food.

Food recommendations from our partner JBL - Products PRONOVO

• Granules
  SHRIMPS GRANO
• Tabs
  CRABS WAFER

Reproduction protocol

• Maintenance difficulty
  moderate
• egg-laying protection
  No

Reproduction of this species in an aquarium is considered moderate.

Reproduction of this species is feasible in captivity. To achieve reproduction of this species, an obligatory passage in brackish water is mandatory. Young people are particularly fragile and it will be necessary to be particularly vigilant with all the maintenance parameters

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.