Black Ruby Barb tank mates
Pethia nigrofasciata
6 rated pairings from the Black Ruby Barb care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Black Ruby Barb needs at least 20 gallons on its own; every companion adds to that.
Excellent matches
1 · Same water, complementary zones, no conflict.
Good matches
4 · Compatible with normal care — watch space and numbers.
Neon Tetra
Paracheirodon innesi
10 gal min · 1.5" adult · Peaceful
Similar size and water parameters; may experience minor fin nipping but generally compatible
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Peaceful algae eater that occupies bottom zone; minimal interaction with barbs
Corydoras Duplicareus
Corydoras duplicareus
15 gal min · 2.2" adult · Peaceful
Bottom-dwelling catfish that avoids competition; benefits from barb activity
Cherry Barb
Puntius titteya
15 gal min · 2" adult · Peaceful
Compatible barb species with similar care needs and activity levels
Use caution
1 · Works in the right setup; read the note before combining.Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.