Edit Rasbora dusonensis

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Name

Scientific name

Rasbora dusonensis

Described by

Authority Bleeker, Year 1850, Bracketed

Family

Cyprinidae

Common names

Not recorded

Photograph credits

All 3 credited

Summary

Rasbora dusonensis is a cyprinid from Sumatra, Peninsular Malaysia and Borneo, found in larger river channels and peat swamp blackwaters. I…

Size and aquarium

Maximum size

162mm, standard length

Aquarium size

Minimum length 120 cm, Minimum depth 30 cm

Water

Water conditions

Temperature 20–26°C, pH 4–7.5

Hardness

1–12dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Community-safe

Where it lives

Countries, regions, rivers and lakes

Indonesia, Malaysia, Borneo, Borneo, Peninsular Malaysia, Sumatra, Baram, Barito, Bernam, Endau, Indragiri, Musi

Writing

Etymology

dusonensis: named for the purported type locality, the 'Duson' river (see 'Distribution').

Distribution

Known with certainty from Sumatra, Indonesia (from the Indragiri River, Riau province to the Musi River, South Sumatra (Sumatera Selatan) province), Peninsular…

Habitat

Has been collected from various habitat-types including larger river channels and more sluggish blackwaters associated with areas of ancient peat swamp forest …

Aquarium size

Requires a relatively large aquarium with a minimum surface area of 120 ∗ 30 cm or equivalent.

Maintenance

Choice of décor is not as critical as water quality and the amount of open swimming-space provided. We suggest keeping it in a large, well-planted aquarium or …

Water conditions

Not written yet

Diet

According to stomach analyses of wild specimens this species feeds mainly on aquatic and terrestrial invertebrates, particularly insects. In the aquarium it wi…

Behaviour and compatibility

This species is peaceful making it an ideal resident of the well-chosen community aquarium, although as always when selecting compatible fishes proper research…

Sexual dimorphism

Mature females are noticeably rounder-bellied and often a little larger than males.

Reproduction

May not yet have been bred in aquaria although likely to exhibit an egg-scattering strategy with no parental care. When the fish are in good condition they wil…

May not yet have been bred in aquaria although likely to exhibit an egg-scattering strategy with no parental care.

When the fish are in good condition they will spawn often and in a well-decorated, mature aquarium it's possible that small numbers of fry may start to appear without human intervention.

However if you want to increase the yield of fry a slightly more controlled approach is required for which several different methods have proven successful for congeners.

What is essential is to provide some sort of egg trap or barrier through which the eggs can pass in order to prevent the adults eating them.

Incubation in Rasbora eggs is temperature-dependant to an extent but usually takes between 18 and 48 hours with the young free-swimming 24 to 48 hours later.

Microscopic food such as Paramecium may be required initially, introducing Artemia nauplii, microworm, etc., once the fry are large enough to accept them.

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Where does this come from?

My own experienceFor example, I've kept twelve in a planted 60 cm tank since March 2024.A website I sawFor example, an IUCN Red List assessment, a museum catalogue or a FishBase page.A paperFor example, Marshall et al. (2011), Water temperature differences in interfluvial palm swamp habitats of Paracheirodon axelrodi and P. simulans.A book, or something not onlineFor example, Tappin (2010), Rainbowfishes: their care and keeping in captivity.Something already on the pageFor example, the Behaviour and compatibility section already says this.

Web address

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DOI

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Title

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Authors

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Year

Journal or publisher

Pages

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Anything worth adding

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Notes

The identity of this species was unclear for a number of decades prior to its redescription by Ng and Kottelat (2013)[10]. The confusion originated with Britta…

References

10 on this profile

Name

Scientific name

Described by

Family

Common names

Photograph credits

Summary

Size and aquarium

Maximum size

Aquarium size

Water

Water conditions

Hardness

Conductivity

Behaviour

Temperament

Social needs

Community suitability

Where it lives

Countries, regions, rivers and lakes

Writing

Etymology

Distribution

Habitat

Aquarium size

Maintenance

Water conditions

Diet

Behaviour and compatibility

Sexual dimorphism

Reproduction

Notes

References

References