Hillstream Loach and Pygmy Corydoras Compatibility Overview
Hillstream Loach and Pygmy Corydoras 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 | Hillstream Loach | Pygmy Corydoras | Verdict |
|---|---|---|---|
| Temperature | 68โ75ยฐF | 72โ79ยฐF | โ ๏ธ 72โ75ยฐF (narrow) |
| pH Range | 6.0โ7.5 | 6.0โ7.5 | โ 6.0โ7.5 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 2.6 in | 1 in | โ ๏ธ 2.6ร difference |
| Min. Group | 4+ | 6+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Hillstream Loach โ Sewellia lineolata
Sewellia lineolata, known as the Hillstream Loach, is a fascinating species for aquarists. These fish require a well-oxygenated, clear water environment with plenty of hiding spots. With a lifespan of 7 years, they are a long-term commitment. Their olive green color and slender body shape add a unique aesthetic to the tank.
โ Full Hillstream Loach care guide
Pygmy Corydoras โ 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 Hillstream Loach live with Pygmy Corydoras?
Yes, in a well-planned setup. Hillstream Loach and Pygmy Corydoras 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 Hillstream Loach and Pygmy Corydoras together?
A minimum of 20 gallons is recommended for keeping Hillstream Loach and Pygmy Corydoras together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Hillstream Loach and Pygmy Corydoras?
72โ75ยฐF (narrow) โ inside Hillstream Loach's 68โ75ยฐF and Pygmy Corydoras's 72โ79ยฐF.
Is a Hillstream Loach aggressive toward a Pygmy Corydoras?
Hillstream Loach is peaceful and Pygmy Corydoras is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Hillstream Loach and Pygmy Corydoras
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. |