orange snakehead

Channa marulioides
Family Channidae
Genus Channa
IUCN category (World) LC
Channa marulioides Channa marulioides

Introduction

Descriptor : Bleeker, 1851

Channa marulioides, known as "Toman Bunga" in Malaysia, is a species of snakehead fish native to Sumatra, Borneo, the Malay Peninsula, and the islands of Bangka and Belitung. "Toman Bunga" literally means "the flower snakehead". This name comes from the black scales along its body, which are referred to as "flowers". It is said that observing it in dark water enhances these "flowers".


Described by Bleeker in 1851 from specimens in Kalimantan, it is sometimes confused with C. melanoptera or C. marulius, but is distinguished by its distinctive coloration and the presence of an orange ocellus on the caudal fin.

Who is it?

Morphology

  • Average size
    45 cm
  • Maximum size
    60 cm
  • Longevity
    20 year
  • Average size
    45 cm
  • Maximum size
    60 cm
  • Longevity
    20 year

How to recognize This fish ?

A large species, C. marulioides commonly reaches 60–65 cm in length. The body is elongated, lacking scales on the throat. Adult coloration features an orange or reddish ocellus at the base of the caudal fin, surrounded by a light border, reminiscent of that of C. marulius.

Most individuals also have dark scales bordered in white creating "flowers" along the flanks, hence its common name. The iris is often red or orange.

Sexual dimorphism

Adult females are typically more robust, with a more developed abdomen, while males often have proportionally larger heads. Color contrasts can also be more pronounced in males during the breeding season.

Behaviour & Life cycle

  • diet
    carnivorous
  • Sociability
    living as a couple or alone
  • territorial
    Yes
  • Way of living
    diurnal

Like other large Channa species, it is an opportunistic predator, active in rivers, lakes, and flooded forest areas. It hunts by ambush, capturing fish, crustaceans, and other aquatic vertebrates. Its role as a top predator is important in the trophic balance of the ecosystems it inhabits.

Reproduction

  • Reproduction
    ovipare qui pond sur substrat découvert

Although the species' reproduction is still poorly documented, it likely follows the pattern of other large Channa species: nest building or laying eggs in calm areas, followed by parental care. Adults protect the eggs and then the fry, which remain grouped together during their early stages.

Harmless species

No particular danger to humans.

Origin and distribution

Natural range
Invasive range
Mixed / unknown area

Geographic distribution & Conservation

The species is found in Southeast Sumatra (Musi, Hari, Indragiri basins), Borneo (Kapuas, Mahakam, Barito), peninsular Malaysia (Pahang, Endau), as well as on the islands of Bangka and Belitung. It is sometimes reported in southern Thailand. Its range covers over a million km² in Southeast Asia, but its presence is locally rare. C. marulioides is caught for the aquarium trade, particularly in Singapore where it is sold as an ornamental fish, under the name "flower snakehead".

Conservation status of populations (IUCN)

World : LC

What is its habitat?

Natural environment characteristics

  • Temperature
    20 - 25 °C
  • pH (acidity)
    4 - 6
  • gh (hardness)
    2 - 8
  • Flow
    Slow

Biotope presentation

This Channa mainly inhabits lowland rivers and large lakes, often in forested areas. It is also found in swampy areas and flooded forests. Dark waters ("blackwaters") particularly enhance the light and dark patterns of its coloration.

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
    1000 liters
  • Population min
    1
  • Temperature
    20 - 25 °C
  • pH (acidity)
    4 - 6

Characteristics

  • Difficulty breeding
    very difficult
  • 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. Une eau trop dure ou trop calcaire peut être inadaptée à de nombreuses espèces tropicales d’eau douce. Si nécessaire, vous pouvez la couper avec de l’eau osmosée ou de pluie filtrée afin d’obtenir une dureté plus adaptée aux besoins de vos poissons et de vos plantes. 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 orange snakehead

The orange snakehead is a species which lives naturally at a temperature between 20 °C and 25 °C. 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 orange snakehead 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.

Jumping fish

Be careful, the orange snakehead is an excellent jumper, naturally using this faculty to change its living area or to escape from predators. The aquarium must be perfectly covered to prevent him from making a deadly jump...

Cohabitation & Environment

This fish 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. A 1000 liter aquarium with at least 200 cm of frontage is the minimum recommended for its maintenance. 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 species enjoys a particularly vegetation-rich environment. The addition of plants will provide many useful hiding places for resting. These areas are also conducive to possible breeding in the aquarium. Floating plants such as Salvinia can be added to recreate the subdued atmosphere characteristic of its living conditions in the wild.

Acid Water Maintenance

The orange snakehead living naturally in acidic water, generally in "black" or "sieved" water, the implementation of a filtration on peat is ideal for its balance. Adding decaying leaves and alder fruit can significantly improve living conditions by naturally increasing acidity of some water.

Tips for feeding

The orange snakehead 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.

Feed animals in moderation to maintain good water quality. Meals should be eaten within 2–3 minutes, served in several small portions rather than a single large ration.

Uneaten food quickly decomposes, releasing ammonia, nitrites, and nitrates, which disturb the aquarium’s biological balance.

Make sure each species can access food properly, slower or bottom-dwelling individuals may require targeted feeding.

Reproduction protocol

  • Maintenance difficulty
    very hard
  • 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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To go further

Espèces du même genre

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.

Benoit Chartrer

Benoit Chartrer

Bibliographic references

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Template and content © Fishipedia - Unauthorized reproduction without prior request - ISSN 2270-7247 - Last modification 12/11/2023

Scientific partners

Same genus

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