Brunei Beauty tank mates
Betta macrostoma
5 rated pairings from the Brunei Beauty care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Brunei Beauty needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Anubias Barteri
Anubias barteri
Hardy plant provides shelter and does not require high light; ideal for cool, low-tech setups
Java Fern
Microsorum pteropus
Shade-loving plant that thrives in cool water and provides cover without competing for space
Cryptocoryne Wendtii
Cryptocoryne wendtii
Slow-growing plant suited to cool, acidic water; creates natural habitat structure
Use caution
2 · Works in the right setup; read the note before combining.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater; may be tolerated but monitor closely as macrostoma may view small fish as prey
Amano Shrimp
Caridina multidentata
10 gal min · 2" adult · Peaceful
Large shrimp less likely to be eaten; still requires careful observation in a species-only setup
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.