Compatibility Overview
Cherry Barb and Pea Puffer can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Cherry Barb | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 73–81°F | 74–82°F | ✅ 74–81°F |
| pH Range | 6.0–8.0 | 7.0–8.0 | ✅ 7.0–8.0 |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 2 in | 1 in | ⚠️ 2.0× difference |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 40 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Cherry Barb — Puntius titteya
Unlike most barbs, cherry barbs are peaceful schooling fish safe with bettas and nano species. Males turn vivid red when in breeding condition.
Pea Puffer — Carinotetraodon travancoricus
World's smallest pufferfish — intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.
Frequently Asked Questions
Can Cherry Barb live with Pea Puffer?
Yes, in a well-planned setup. Cherry Barb and Pea Puffer can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Cherry Barb and Pea Puffer together?
A minimum of 40 gallons is recommended for keeping Cherry Barb and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Cherry Barb and Pea Puffer?
74–81°F
Is a Cherry Barb aggressive toward a Pea Puffer?
Cherry Barb is peaceful and Pea Puffer is semi. Minor aggression possible from the semi-aggressive species; provide hiding spots.