Compatibility Overview
Chili Rasbora and Corydoras Catfish 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Chili Rasbora | Corydoras Catfish | Verdict |
|---|---|---|---|
| Temperature | 68–82°F | 70–79°F | ✅ 70–79°F |
| pH Range | 4.0–7.0 | 6.0–8.0 | ✅ 6.0–7.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 0.8 in | 2.5 in | ⚠️ 3.1× difference |
| Min. Group | 8+ | 6+ | See below |
| Min. Tank Size | 55 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
Corydoras Catfish — Corydoras spp.
Armoured bottom-dwelling catfish that are peaceful with all non-aggressive species. Need fine sand substrate to protect delicate barbels.
Frequently Asked Questions
Can Chili Rasbora live with Corydoras Catfish?
Yes, in a well-planned setup. Chili Rasbora and Corydoras Catfish 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Chili Rasbora and Corydoras Catfish together?
A minimum of 55 gallons is recommended for keeping Chili Rasbora and Corydoras Catfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Chili Rasbora and Corydoras Catfish?
70–79°F
Is a Chili Rasbora aggressive toward a Corydoras Catfish?
Chili Rasbora is peaceful and Corydoras Catfish is peaceful. Significant size difference (2.5 in vs 0.8 in) — the larger species may out-compete for food or intimidate the smaller.