Pea Puffer and Pygmy Corydoras Compatibility Overview
Pea Puffer and Pygmy Corydoras can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Pea Puffer is semi and Pygmy Corydoras is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Pea Puffer | Pygmy Corydoras | Verdict |
|---|---|---|---|
| Temperature | 74โ82ยฐF | 72โ79ยฐF | โ 74โ79ยฐF |
| pH Range | 7.0โ8.0 | 6.0โ7.5 | โ ๏ธ 7.0โ7.5 (narrow) |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 1 in | 1 in | โ Similar |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Pea Puffer โ Carinotetraodon travancoricus
World's smallest pufferfish โ intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.
โ Full Pea Puffer 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 Pea Puffer live with Pygmy Corydoras?
Yes, in a well-planned setup. Pea Puffer and Pygmy Corydoras can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Pea Puffer is semi and Pygmy Corydoras is peaceful, so give them room and cover rather than assuming they will ignore each 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 Pea Puffer and Pygmy Corydoras together?
A minimum of 20 gallons is recommended for keeping Pea Puffer and Pygmy Corydoras together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Pea Puffer and Pygmy Corydoras?
74โ79ยฐF โ inside Pea Puffer's 74โ82ยฐF and Pygmy Corydoras's 72โ79ยฐF.
Is a Pea Puffer aggressive toward a Pygmy Corydoras?
Pea Puffer is semi and Pygmy Corydoras is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Pea Puffer 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. |