Pygmy Corydoras and X Ray Tetra Compatibility Overview
Pygmy Corydoras and X Ray Tetra 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 | Pygmy Corydoras | X Ray Tetra | Verdict |
|---|---|---|---|
| Temperature | 72โ79ยฐF | 72โ82ยฐF | โ 72โ79ยฐF |
| pH Range | 6.0โ7.5 | 6.0โ7.5 | โ 6.0โ7.5 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 1 in | 1.8 in | โ Similar |
| Min. Group | 6+ | 6+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
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.
โ Full Pygmy Corydoras care guide
X Ray Tetra โ Pristella maxillaris
The Pristella maxillaris, also known as the X-Ray Tetra, is a popular freshwater fish known for its unique appearance and peaceful nature. They are slender and iridescent, with a clear, almost x-ray-like body. They are best kept in groups of 6 or more and thrive in well-planted tanks with a moderate water flow.
Frequently Asked Questions
Can Pygmy Corydoras live with X Ray Tetra?
Yes, in a well-planned setup. Pygmy Corydoras and X Ray Tetra 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 Pygmy Corydoras and X Ray Tetra together?
A minimum of 20 gallons is recommended for keeping Pygmy Corydoras and X Ray Tetra together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Pygmy Corydoras and X Ray Tetra?
72โ79ยฐF โ inside Pygmy Corydoras's 72โ79ยฐF and X Ray Tetra's 72โ82ยฐF.
Is a Pygmy Corydoras aggressive toward a X Ray Tetra?
Pygmy Corydoras is peaceful and X Ray Tetra is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Pygmy Corydoras and X Ray Tetra
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. |