siamese algae-eater

Scientific name Crossocheilus oblongus
Descriptor Kuhl & Van Hasselt
Year of description 1823
IUCN category LC
Family Cyprinidae
Genus Crossocheilus
Crossocheilus oblongus Crossocheilus oblongus

Introduction

Crossocheilus oblongus, commonly known as siamese algae-eater, is a fresh water fish from the Asia.

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Who is it?

Morphology

  • Type
  • Average size
    14 cm
  • Maximum size
    16 cm
  • Longevity
    5 year
  • Mimicry
    plants
  • Pattern
    horizontal stripes
  • Type
  • Average size
    14 cm
  • Maximum size
    16 cm
  • Longevity
    5 year
  • Mimicry
    plants
  • Pattern
    horizontal stripes

How to recognize the siamese algae-eater ?

The siamese algae-eater measures between 14 and 16 cm. This fish is bicolore with a predominantly vert, argent and marron body. The also has noir horizontal stripes.

Sexual dimorphism

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

  • diet
    herbivorous
  • Sociability
    gregarious
  • territorial
    No
  • Way of living
    diurnal

The siamese algae-eater is a fish gregarious naturally found on the bottom. This species is herbivorous .

Although the siamese algae-eater is non-territorial, it is sometimes aggressive towards other species. It also shows signs of aggression towards its conspecifics.

Reproduction

  • Reproduction
    ovipare
  • Migratory species
    Yes

The siamese algae-eater is a fish ovipare.

Harmless species

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

Where to find it?

Where to see this species?

What is its habitat?

Natural environment characteristics

  • Temperature
    24 - 26 °C
  • pH (acidity)
    6 - 7.5
  • gh (hardness)
    2 - 12
  • Flow
    Strong

Biotope presentation

The siamese algae-eater is most often found at a depth between 0m and 2m. However, it is not impossible to find this species at other depths.

The siamese algae-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 .

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
    200 liters
  • Population min
    4
  • Temperature
    24 - 26 °C
  • pH (acidity)
    6.8 - 7.2

Characteristics

  • Difficulty breeding
    hard
  • Robustness
    robust
  • Behaviour
    slightly aggressive
  • Availability
    standard

Cohabitation & Environment

Being a gregarious fish, it is advisable to install at least 4 individuals in an aquarium of 200 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. Warning, mixing several species living in the same living area is not recommended if the volume is not significant. The siamese algae-eater needs a large living space, therefore it is advisable to keep it in an aquarium with a frontage of at least 100 cm.

As previously said, The siamese algae-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.

Tips for feeding

The siamese algae-eater is herbivorous.

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

Reproduction protocol

  • Maintenance difficulty
    very hard
  • 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.

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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.

Adrien Falzon

Adrien Falzon

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.

Bibliographic references

A REVIEW OF THE CHINESE SPECIES OF CROSSOCHEILUS, WITH DESCRIPTION OF A NEW SPECIES (OSTARIOPHYSI: CYPRINIDAE) - Su Rui-Feng - Yang Jun-Xing - Chen Yin-Rui - THE RAFFLES BULLETIN OF ZOOLOGY - 2000. © National University of Singapore

CROSSOCHEILUS ELEGANS, A NEW SPECIES OF FISH FROM NORTHERN BORNEO (TELEOSTEI: CYPRINIDAE) - Maurice Kottelat - Tan Heok Hui - THE RAFFLES BULLETIN OF ZOOLOGY - 2011. © National University of Singapore

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Species of the same family

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Species of the same biotope

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