Betta fusca*
Regan 1910

Male Betta fusca
Photo by Gary Chen

Keeping Betta fusca from an Aquarist View


Betta fusca can be housed in pairs, species tanks, and community tanks.  Pairs can be housed in a 10 gallon tank, groups should be housed in a 30 gallon tank or larger.  Pairs should be given cover such as caves and plants.  In a pair or species situation it is possible that fry could be discovered in the tanks.  For best results remove a brooding male.

Water Conditions

Not critical, fusca is very tolerant of water chemistry and thrives in almost any type of water as long as it is clean and well filtered.  They should be kept at cool to mid 70s F.


Males have a broader head then females and have a caudal spike typical of pugnax complex and longer pelvic fins.  Females ovaries might be visible via spotlighting.


Fusca is a paternal mouthbrooder and the male incubates from 12 to 18 days with 14 days being very consistent.  Incubation time can vary with water temperature.  Females normally initiate spawning.

Similar Species Similar species would be pugnax complex members.

*Taxonomy is currently in doubt whether this species actually exists.  It is likely the fusca imported are raja or other pugnax complex members.

Articles on Related Species

Hellweg, Michael. I’ve Got a New Mouthbrooding Betta – Now What?. 2003.

Griffin, Gerald.  Working with wild Bettas Flare! 2006

Original Citation Regan, C. T. 1910. [84]

Baensch, H.A. and R. Riehl, 1991. [25] Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. [88] Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. [58] Neugebauer, Norbert, 2002. [136]

Type Locality Sumatra, Indonesia
Syntype BMNH 1908.7.13.18-19 (2)
Where Found



Known Occurrences: Malaysia: River Mertang, via Kuala Pilah, Federated Malay States
Malaysia: Teloh Bahang, Penang
Malaysia: Temerloh, Perak
Malaysia: Terachi, Federated Malay States
Miscellaneous Information Max Size: 8.2 cm TL
pH range: 5.5 – 7.0
dH range: 12.0
Temperature range: 22 – 26°C
Reproduction: Mouthbrooder

Copyright ©2004-2017 International Betta Congress Inc. All rights reserved.
The IBC & IBC-about-betta-splendens/smp Logo used on these pages are the registered property of the IBC Inc. and can not be used without permission.
For questions in regards to this website, contact the about-betta-splendens/smp Chairperson
Last update:06/11/2018