Betta Smaragdina tank mates
Betta smaragdina
5 rated pairings from the Betta Smaragdina care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Betta Smaragdina needs at least 10 gallons on its own; every companion adds to that.
Excellent matches
3 · Same water, complementary zones, no conflict.
Anubias Barteri
Anubias barteri
Hardy plant that provides shelter and blackwater aesthetic without being uprooted
Java Moss
Taxiphyllum barbieri
Dense vegetation creates refuge areas and mimics natural habitat structure
Cryptocoryne Wendtii
Cryptocoryne wendtii
Low-growing plant ideal for blackwater setups that bettas won't destroy
Good matches
2 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Small, peaceful algae-eaters that occupy bottom zone and avoid betta aggression
Ramshorn Snail
Planorbarius corneus
5 gal min · 0.75" adult · Peaceful
Slow-moving snails that rarely trigger aggression and help maintain water quality
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.