Edit Devario acrostomus

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Name

Scientific name

Devario acrostomus

Described by

Authority Fang & Kottelat, Year 1999, Bracketed

Family

Cyprinidae

Common names

Not recorded

Photograph credits

All 5 credited

Summary

Devario acrostomus is a devario from the Nam Leuk drainage in Vientiane Province, Laos, and has also been recorded in northeastern Thailand…

Size and aquarium

Maximum size

80mm, standard length

Aquarium size

Minimum length 120 cm, Minimum depth 45 cm

Water

Water conditions

Temperature 23–26°C, pH 6–7

Hardness

1–8dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Community-safe

Where it lives

Countries, regions, rivers and lakes

Laos, Thailand, Mekong, Nam Leuk

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. acrostomus: from t…

Distribution

Described from the Nam Leuk river drainage both upstream and downstream of Tad Leuk waterfall, Phou Khao Khouay National Park, Vientiane Province, northwestern…

Habitat

The type series was collected during the dry season from localities with varying gradient both within the Nam Leuk mainstream and smaller tributaries. In the t…

Aquarium size

An aquarium with base measuring at least 120 ∗ 45 cm is suggested for long-term maintenance.

Maintenance

Not difficult to keep in a well-maintained set-up, though we recommend aquascaping the tank to resemble a flowing stream or river with a substrate of variably-…

Water conditions

Temperature: Air temperatures in Vientiane are relatively stable with monthly averages varying from 17.2°C/63°F in December and January to 33.9°C/93°F in April…

Diet

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

Behaviour and compatibility

Not an aggressive fish but may upset slow-moving or timid tankmates with its constant activity and vigorous feeding behaviour, and is therefore most appropriat…

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

There are plenty of suitable choices including many cyprinids, loaches, cichlids, catfishes 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.

Reproduction

Not written yet

Notes

This species first appeared in the aquarium hobby in early 2011. At first glance it appears similar to some other members of the genus, especially D. aequipinn…

References

9 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