Edit Betta macrostoma
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Name
Scientific name
Betta macrostoma
Described by
Authority Regan, Year 1910
Family
Osphronemidae
Common names
Brunei Beauty
Photograph credits
All 29 credited
Summary
The Brunei beauty, Betta macrostoma, is a large paternal mouthbrooding labyrinth fish endemic to Brunei and the northern tip of Sarawak, Bo…
Size and aquarium
Maximum size
100mm, standard length
Aquarium size
Minimum length 80 cm, Minimum depth 30 cm, Water movement Low: still or sluggish water
Water
Water conditions
Temperature 20–25°C, pH 4–6
Hardness
0–5dGH
Conductivity
Not recorded
Behaviour
Temperament
Species tank only
Social needs
A pair
Community suitability
Not for a community
Where it lives
Countries, regions, rivers and lakes
Brunei, Malaysia, Borneo, Mendarem
Writing
Etymology
Not written yet
Distribution
Endemic to Borneo where it's known only from Brunei Darussalam and the northern tip of the Malaysian state of Sarawak. In Brunei there exist a number of known …
Habitat
Has been collected from still, shady pools at the top of rainforest waterfalls in both Brunei and Sarawak. Substrates appear to be composed mainly of gravel/ro…
Aquarium size
An aquarium with base measurements of 80 ∗ 30 cm or equivalent is sufficient for a pair.
Maintenance
Can be maintained in a fully-decorated aquarium although many breeders prefer not to use a substrate for ease of maintenance. Driftwood roots and branches can …
Water conditions
Not written yet
Diet
Likely to prey on insects and other small invertebrates/zooplankton in nature, plus perhaps the shrimp that share its habitat. Captive fish will normally accep…
Behaviour and compatibility
Not recommended for the standard community set-up for reasons already touched upon. It's requirements and disposition mean it's best kept alone or with very pe…
Sexual dimorphism
Males tend to grow larger, are more colourful, have a broader head shape and more extended fins than females.
Reproduction
Paternal mouthbrooder. Ideally organise a separate tank for breeding purposes, unless the fish are already being maintained alone, setting this up as suggested…
Notes
B. macrostoma is included in the Betta unimaculata complex of closely-related species within the genus, of which members share the following set of characters:…
References
References
3 on this profile