Compatibility Overview
Chili Rasbora and Pygmy Corydoras can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Chili Rasbora | Pygmy Corydoras | Verdict |
|---|---|---|---|
| Temperature | 68–82°F | 72–79°F | ✅ 72–79°F |
| pH Range | 4.0–7.0 | 6.0–7.5 | ✅ 6.0–7.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 0.8 in | 1 in | ✅ Similar |
| Min. Group | 8+ | 6+ | See below |
| Min. Tank Size | 40 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Chili Rasbora — Boraras brigittae
Vivid red nano fish from Borneo blackwater habitats. Extremely small — only safe with fish too small to swallow them.
→ Full Chili Rasbora care guide
Pygmy Corydoras — Corydoras pygmaeus
Tiny armoured catfish that school in open water as well as on the substrate. Peaceful with all non-aggressive species.
Frequently Asked Questions
Can Chili Rasbora live with Pygmy Corydoras?
Yes, in a well-planned setup. Chili Rasbora and Pygmy Corydoras can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Chili Rasbora and Pygmy Corydoras together?
A minimum of 40 gallons is recommended for keeping Chili Rasbora and Pygmy Corydoras together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Chili Rasbora and Pygmy Corydoras?
72–79°F
Is a Chili Rasbora aggressive toward a Pygmy Corydoras?
Chili Rasbora is peaceful and Pygmy Corydoras is peaceful. No major aggression issues are expected between these species.