Edit Devario laoensis

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Name

Scientific name

Devario laoensis

Described by

Authority Pellegrin & Fang, Year 1940, Bracketed

Family

Cyprinidae

Common names

Not recorded

Photograph credits

All 7 credited

Summary

Devario laoensis is a devario from the upper Mekong watershed in northwestern Laos and northern Thailand. Its dark P stripe starts faint ar…

Size and aquarium

Maximum size

65mm, standard length

Aquarium size

Minimum length 90 cm, Minimum depth 30 cm

Water

Water conditions

Temperature 23–26°C, pH 6–7.5

Hardness

1–10dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Community-safe

Where it lives

Countries, regions, rivers and lakes

Laos, Thailand, Mekong, Nam Ou

Writing

Etymology

Devario: appears to be derived from a local vernacular name for the type species of the genus Cyprinus (now Devario) devario Hamilton, 1822. laoensis: named fo…

Distribution

Type locality is 'Ban Nam Khueng' which lies in northwestern Laos and it's since been recorded from various localities within the upper Mekong watershed in Lao…

Habitat

This species' habitats are situated at relatively high altitude and receive a great deal of rainfall between the months of May and October. It's likely to be r…

Aquarium size

A tank with a base measuring 90 ∗ 30 cm or equivalent should be the minimum considered.

Maintenance

No information regarding captive care exists but presumably it won't prove difficult to keep in a well-maintained set-up as with related species. It's likely t…

Water conditions

Not written yet

Diet

Almost certain to prey chiefly on insects and their larvae in nature. In the aquarium it's a largely unfussy feeder and will accept most foods. A good quality …

Behaviour and compatibility

Probably not an aggressive fish but may upset slow-moving or timid tankmates with its constant activity and vigorous feeding behaviour so is most appropriate f…

Probably not an aggressive fish but may upset slow-moving or timid tankmates with its constant activity and vigorous feeding behaviour so is most appropriate for larger aquaria containing robust, similarly-sized fishes.

There are plenty of suitable choices including many cyprinids, loaches, cichlids, catfish and characins, although as always when selecting a compatible community of fish proper research is essential.

It's a schooling species by nature and ideally should be kept in a group of at least 8-10 specimens which will not only make the fish less nervous but will result in a more effective, natural looking display.

Any aggression will also be contained as the fish concentrate on maintaining their hierarchical position within the group, and males tend to display better colours in the presence of rivals.

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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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Sexual dimorphism

Sexually mature females should be rounder-bellied, less colourful and a little larger than males. When in breeding condition the lower half of the body is suff…

Reproduction

Not written yet

Notes

This species is more-or-less unheard of in the hobby at time of writing, though a handful specimens were imported to Singapore in the late 2000s. It has a comp…

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