Edit Trigonopoma gracile

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Name

Scientific name

Trigonopoma gracile

Described by

Authority Kottelat, Year 1991, Bracketed

Family

Cyprinidae

Common names

Not recorded

Photograph credits

All 4 credited

Summary

Trigonopoma gracile is a small rasbora from the blackwater peat swamps of Peninsular Malaysia, Borneo and Sumatra. Its colour forms vary wi…

Size and aquarium

Maximum size

55mm, standard length

Aquarium size

Minimum length 75 cm, Minimum depth 30 cm

Water

Water conditions

Temperature 21–26°C, pH 4–7

Hardness

0–10dGH

Conductivity

Not recorded

Behaviour

Temperament

Not recorded

Community suitability

Community-safe

Where it lives

Countries, regions, rivers and lakes

Indonesia, Malaysia, Borneo, Borneo, Peninsular Malaysia, Riau Islands, Sumatra

Writing

Etymology

Not written yet

Distribution

Type locality is 'Sungei Pinyuh, 8 kilometers southeast of Anjungan on road to Pontianak, 0°20'N, 109°08'E, Kalimantan Barat, Borneo', but this species is wide…

Habitat

Primarily inhabits black water streams and rivers associated with ancient forest peat swamps in which the water that is typically stained dark brown by humic a…

Aquarium size

Minimum base dimensions of 75 ∗ 30 cm or equivalent are required for long-term care.

Maintenance

Choice of décor is not especially critical though it tends to show better colouration in a heavily-planted set-up with a dark substrate. A more natural-looking…

Water conditions

Not written yet

Diet

Likely to be a micropredator feeding on small insects, worms, crustaceans, and other zooplankton in nature. In the aquarium it's easily-fed but the best condit…

Behaviour and compatibility

An ideal addition to a peaceful community of Southeast Asian fishes with comparably-sized cyprinids, small loaches, and certain anabantoids perhaps constitutin…

An ideal addition to a peaceful community of Southeast Asian fishes with comparably-sized cyprinids, small loaches, and certain anabantoids perhaps constituting the best choices.

Some of the more commonly-exported species from Borneo include 'Puntius' johorensis, 'P.' hexazona, Brevibora dorsiocellata, Trigonopoma pauciperforatum, Rasbora eintovenii, and various Pangio spp., for example. Avoid boisterous or very vigorous tankmates as they may outcompete it for food.

It's a schooling species by nature and the purchase of at least 8-10 specimens is recommended. Maintaining it in larger numbers will not only make the fish less nervous but will result in a more effective, natural-looking display. Males will also display their best colours as they compete with one other for female attention.

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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

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Pages

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Anything worth adding

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Sexual dimorphism

Mature females are noticeably rounder-bellied and often a little larger than the slimmer, more-intensely patterned males.

Reproduction

Possibly unrecorded but recommendations for related species are as follows: Like most small cyprinids Trigonopoma spp. are egg-scattering free spawners exhibit…

Notes

This species occurs in several colour forms depending on collection locality with some exhibiting more intense pigmentation in the fins or an additional reddis…

References

5 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