Compatibility Overview
Kuhli Loach 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Kuhli Loach | Pygmy Corydoras | Verdict |
|---|---|---|---|
| Temperature | 73–82°F | 72–79°F | ✅ 73–79°F |
| pH Range | 5.5–7.0 | 6.0–7.5 | ✅ 6.0–7.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 3.5 in | 1 in | ⚠️ 3.5× difference |
| Min. Group | 3+ | 6+ | See below |
| Min. Tank Size | 55 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Kuhli Loach — Pangio kuhlii
Eel-like bottom dwellers that are peaceful with all non-aggressive fish. Nocturnal and reclusive; need caves and soft substrate.
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 Kuhli Loach live with Pygmy Corydoras?
Yes, in a well-planned setup. Kuhli Loach 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Kuhli Loach and Pygmy Corydoras together?
A minimum of 55 gallons is recommended for keeping Kuhli Loach and Pygmy Corydoras together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Kuhli Loach and Pygmy Corydoras?
73–79°F
Is a Kuhli Loach aggressive toward a Pygmy Corydoras?
Kuhli Loach is peaceful and Pygmy Corydoras is peaceful. Significant size difference (3.5 in vs 1 in) — the larger species may out-compete for food or intimidate the smaller.