Compatibility Overview
Corydoras Catfish and Kuhli Loach 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 | Corydoras Catfish | Kuhli Loach | Verdict |
|---|---|---|---|
| Temperature | 70–79°F | 73–82°F | ✅ 73–79°F |
| pH Range | 6.0–8.0 | 5.5–7.0 | ✅ 6.0–7.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 2.5 in | 3.5 in | ✅ Similar |
| Min. Group | 6+ | 3+ | See below |
| Min. Tank Size | 55 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Corydoras Catfish — Corydoras spp.
Armoured bottom-dwelling catfish that are peaceful with all non-aggressive species. Need fine sand substrate to protect delicate barbels.
→ Full Corydoras Catfish care guide
Kuhli Loach — Pangio kuhlii
Eel-like bottom dwellers that are peaceful with all non-aggressive fish. Nocturnal and reclusive; need caves and soft substrate.
Frequently Asked Questions
Can Corydoras Catfish live with Kuhli Loach?
Yes, in a well-planned setup. Corydoras Catfish and Kuhli Loach 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 Corydoras Catfish and Kuhli Loach together?
A minimum of 55 gallons is recommended for keeping Corydoras Catfish and Kuhli Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Corydoras Catfish and Kuhli Loach?
73–79°F
Is a Corydoras Catfish aggressive toward a Kuhli Loach?
Corydoras Catfish is peaceful and Kuhli Loach is peaceful. No major aggression issues are expected between these species.