Lemon Tetra and Pea Puffer Compatibility Overview
Lemon Tetra and Pea Puffer can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Lemon Tetra 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 | Lemon Tetra | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 68โ82ยฐF | 74โ82ยฐF | โ 74โ82ยฐF |
| pH Range | 5.0โ7.5 | 7.0โ8.0 | โ ๏ธ 7.0โ7.5 (narrow) |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 1.6 in | 1 in | โ Similar |
| Min. Group | 8+ | 1+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Lemon Tetra โ Hyphessobrycon pulchripinnis
The Lemon Tetra is a vibrant, peaceful addition to freshwater tanks. Known for its striking yellow and red colors, it is well-suited for community tanks. They are active swimmers and thrive in groups. Maintaining stable water conditions is key to their health.
โ Full Lemon Tetra 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 Lemon Tetra live with Pea Puffer?
Yes, in a well-planned setup. Lemon Tetra and Pea Puffer can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Lemon Tetra 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 Lemon Tetra and Pea Puffer together?
A minimum of 20 gallons is recommended for keeping Lemon Tetra and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Lemon Tetra and Pea Puffer?
74โ82ยฐF โ inside Lemon Tetra's 68โ82ยฐF and Pea Puffer's 74โ82ยฐF.
Is a Lemon Tetra aggressive toward a Pea Puffer?
Lemon Tetra is peaceful and Pea Puffer is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Lemon Tetra 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. |