Species · Pethia nigrofasciata

Black ruby barb: tank size, water and tank mates

Peaceful barb.

Adult size6 cm (2.4 in)
Minimum tank20 US gal
Temperature22–26 °C (72–79 °F)
pH5.5–7.5
Temperamentpeaceful
Keep in groups of6+
Swimsmid
Shrimp & snailsCaution

Check a tank with Black ruby barb

Good tank mates for Black ruby barb

These species share its temperature range and temperament, with no fin-nipping or predation risk under our rules. Still check your tank size and bioload in the checker.

African dwarf frog · Banjo catfish · Betta (male) · Black neon tetra · Black phantom tetra · Black skirt tetra · Bleeding heart tetra · Bloodfin tetra · Bristlenose pleco · Bronze corydoras · Buenos Aires tetra · Bumblebee goby · Cardinal tetra · Celestial pearl danio · Checkerboard barb · Cherry barb · Chili rasbora · Clown killifish · Clown pleco · Cockatoo dwarf cichlid · Colombian tetra · Congo tetra · Diamond tetra · Dwarf gourami

Avoid with Black ruby barb

Black ghost knifefish (predation) · Boeseman's rainbowfish (temperature) · Common / comet goldfish (temperature) · Convict cichlid (aggression) · Demasoni cichlid (aggression) · Discus (temperature) · Fancy goldfish (temperature) · German blue ram (temperature) · Jack Dempsey (predation) · Jewel cichlid (aggression) · Oscar (predation) · Paradise fish (aggression) · Pea puffer (aggression) · Senegal bichir (predation)

Sources

Checked 2026-11-09 · confidence: medium. These are cautious community guidelines, not guarantees. Not veterinary advice. Report an error.