Diamond Tetra and Pygmy Corydoras Compatibility Overview
Diamond Tetra 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 | Diamond Tetra | Pygmy Corydoras | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 72โ79ยฐF | โ 75โ79ยฐF |
| pH Range | 5.5โ7.0 | 6.0โ7.5 | โ 6.0โ7.0 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 2.4 in | 1 in | โ ๏ธ 2.4ร difference |
| Min. Group | 6+ | 6+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Diamond Tetra โ Moenkhausia pittieri
The Diamond Tetra is a popular freshwater fish known for its vibrant colors and peaceful nature. It is well-suited for community tanks and can thrive in a variety of water conditions. With a moderate activity level and a preference for schools, this species is a great addition to any beginner or intermediate aquarist's tank.
โ Full Diamond Tetra 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 Diamond Tetra live with Pygmy Corydoras?
Yes, in a well-planned setup. Diamond Tetra 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 Diamond Tetra and Pygmy Corydoras together?
A minimum of 20 gallons is recommended for keeping Diamond Tetra and Pygmy Corydoras together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Diamond Tetra and Pygmy Corydoras?
75โ79ยฐF โ inside Diamond Tetra's 75โ82ยฐF and Pygmy Corydoras's 72โ79ยฐF.
Is a Diamond Tetra aggressive toward a Pygmy Corydoras?
Diamond Tetra is peaceful and Pygmy Corydoras is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Diamond Tetra 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. |