Edit Betta falx
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Name
Scientific name
Betta falx
Described by
Authority Tan & Kottelat, Year 1998
Family
Osphronemidae
Common names
Not recorded
Photograph credits
All 8 credited
Summary
Betta falx is a small paternal mouthbrooding labyrinth fish endemic to Sumatra, Indonesia, where most collections come from Jambi province.…
Size and aquarium
Maximum size
50mm, standard length
Aquarium size
Minimum length 60 cm, Minimum depth 30 cm, Water movement Low: still or sluggish water
Water
Water conditions
Temperature 22–27°C, pH 4.7–6.8
Hardness
0–5dGH
Conductivity
Not recorded
Behaviour
Temperament
Species tank only
Social needs
Not recorded
Community suitability
Not for a community
Where it lives
Countries, regions, rivers and lakes
Indonesia, Sumatra, Alai
Writing
Etymology
Not written yet
Distribution
Endemic to Sumatra, Indonesia. Most collections have occured in the central province of Jambi although it has also been recorded in the more northerly region o…
Habitat
Typically inhabits forest swamp streams and pools, some of which have been measured at just a few centimetres deep. These are usually shaded from the sun, the …
Aquarium size
An aquarium with base measurements of 60 ∗ 30 cm is suitable for a pair or small group.
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
Temperature: 22 – 27 °C pH: Not as fussy as some congeners. The pH in its natural waters has been recorded over the range 4.7 – 6.8 so provided conditions are …
Diet
Likely to prey on insects and other small invertebrates/zooplankton in nature. Captive fish will normally accept dried products once they're recognised as edib…
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 grow larger, possess a greater amount of iridescent scaling on the head, 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. falx is included in the Betta picta group/complex of closely-related species within the genus, an assemblage comprising species with the following shared ch…
References
References
2 on this profile