Corydoras and Pea Puffer Compatibility Overview
Corydoras Catfish and Pea Puffer can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Corydoras Catfish is peaceful and Pea Puffer is semi, 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 | Corydoras Catfish | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 70โ79ยฐF | 74โ82ยฐF | โ 74โ79ยฐF |
| pH Range | 6.0โ8.0 | 7.0โ8.0 | โ 7.0โ8.0 |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 2.5 in | 1 in | โ ๏ธ 2.5ร difference |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Corydoras Catfish โ Corydoras spp.
Armoured bottom-dwelling catfish that are peaceful with all non-aggressive species. Need fine sand substrate to protect delicate barbels.
โ Full Corydoras Catfish care guide
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.
Frequently Asked Questions
Can Corydoras Catfish live with Pea Puffer?
Yes, in a well-planned setup. Corydoras Catfish and Pea Puffer can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Corydoras Catfish is peaceful and Pea Puffer is semi, 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 Corydoras Catfish and Pea Puffer together?
A minimum of 20 gallons is recommended for keeping Corydoras Catfish and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Corydoras Catfish and Pea Puffer?
74โ79ยฐF โ inside Corydoras Catfish's 70โ79ยฐF and Pea Puffer's 74โ82ยฐF.
Is a Corydoras Catfish aggressive toward a Pea Puffer?
Corydoras Catfish is peaceful and Pea Puffer is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Corydoras and Pea Puffer
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. |