Edit Boraras naevus
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Name
Scientific name
Boraras naevus
Described by
Authority Conway & Kottelat, Year 2011
Family
Cyprinidae
Common names
Not recorded
Photograph credits
All 5 credited
Summary
Boraras naevus is a miniature cyprinid known only from the lower Tapi river drainage in Surat Thani province, southern (peninsular) Thailan…
Size and aquarium
Maximum size
20mm, standard length
Aquarium size
Minimum length 45 cm, Minimum depth 30 cm, Water movement Low: still or sluggish water
Water
Water conditions
Temperature 20–28°C, pH 5–7
Hardness
1–10dGH
Conductivity
Not recorded
Behaviour
Temperament
Peaceful
Social needs
A shoal or group
Community suitability
Community-safe
Where it lives
Countries, regions, rivers and lakes
Thailand, Tapi
Writing
Etymology
Boraras: anagram of the generic name Rasbora, in reference to the reversed ratio of abdominal and caudal vertebrae in this genus. naevus: from the Latin naevus…
Distribution
Known only from southern (peninsular) Thailand with the type series originating from a swamp north of Surat Thani city, Surat Thani province. It's been recorde…
Habitat
Inhabits shallow bodies of clear water such as swamps and marshes, with other members of the genus tending to prefer areas where submerged vegetation grows thi…
Aquarium size
Though small it still needs space to swim and dominant males will form temporary territories when spawning so a group is best kept in a tank with base dimensio…
Maintenance
Best maintained in a densely-planted aquarium and is an excellent choice for the carefully-aquascaped set-up. The addition of some floating plants and roots or…
Water conditions
Temperature: 20 – 28 °C pH: Seems to prefer slightly acidic to neutral water in the range 5.0 – 7.0. Hardness: 1 – 10 dGH
Diet
As with other Boraras species it is likely to be a micropredator feeding on small insects, worms, crustaceans and other zooplankton in nature. In the aquarium …
Behaviour and compatibility
This species is very peaceful but does not make an ideal community fish due to its small size and rather timid nature. It will do best when maintained alone or…
Sexual dimorphism
Mature females are noticeably rounder-bellied, often a little larger and less-intensively coloured than males. In males the anterior dark blotch on each flank …
Reproduction
Like many small cyprinids this species is an egg-scattering, continuous spawner that exhibits zero parental care. That is to say when in good condition and in …
Notes
Prior to description this species was traded under various names including B. sp. 'micros' or 'red micros', B. sp. 'Petch Noi', B. sp. 'Thailand', B. sp. 'sout…
References
References
7 on this profile