Black Ruby Barb and Chili Rasbora Compatibility Overview
Black Ruby Barb and Chili Rasbora can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Black Ruby Barb | Chili Rasbora | Verdict |
|---|---|---|---|
| Temperature | 68โ81ยฐF | 68โ82ยฐF | โ 68โ81ยฐF |
| pH Range | 5.5โ7.5 | 4.0โ7.0 | โ 5.5โ7.0 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 2.2 in | 0.8 in | โ ๏ธ 2.8ร difference |
| Min. Group | 6+ | 8+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Black Ruby Barb โ Pethia nigrofasciata
The Black Ruby Barb is a vibrant, active species suitable for beginners. It requires a spacious tank and a school of its own kind to thrive. Its striking colors and lively nature make it a popular choice.
โ Full Black Ruby Barb care guide
Chili Rasbora โ Boraras brigittae
Vivid red nano fish from Borneo blackwater habitats. Extremely small โ only safe with fish too small to swallow them.
Frequently Asked Questions
Can Black Ruby Barb live with Chili Rasbora?
Yes, in a well-planned setup. Black Ruby Barb and Chili Rasbora can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Black Ruby Barb and Chili Rasbora together?
A minimum of 20 gallons is recommended for keeping Black Ruby Barb and Chili Rasbora together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Black Ruby Barb and Chili Rasbora?
68โ81ยฐF โ inside Black Ruby Barb's 68โ81ยฐF and Chili Rasbora's 68โ82ยฐF.
Is a Black Ruby Barb aggressive toward a Chili Rasbora?
Black Ruby Barb is peaceful and Chili Rasbora is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Black Ruby Barb and Chili Rasbora
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 20 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 29 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 55 gal | Best when keeping larger schools or reducing territorial pressure. |