Peaceful Betta tank mates
Betta imbellis
6 rated pairings from the Peaceful Betta care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Peaceful Betta needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
4 · Same water, complementary zones, no conflict.
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Small, peaceful schooling fish with similar water requirements and non-aggressive temperament
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Algae-eating bottom dweller that won't compete with bettas and prefers soft, acidic water
Panda Corydoras
Corydoras panda
15 gal min · 2" adult · Peaceful
Gentle bottom feeders that occupy different water zones and prefer soft, slightly acidic conditions
Chili Rasbora
Boraras brigittae
5 gal min · 0.8" adult · Peaceful
Tiny, peaceful fish ideal for planted tanks with soft water; won't trigger aggression
Good matches
1 · Compatible with normal care — watch space and numbers.
Use caution
1 · Works in the right setup; read the note before combining.Also recommended alongside Peaceful Betta
Species whose own guides list Peaceful Betta as a tank mate.
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.