Compatibility Overview
Pea Puffer and Tiger Barb can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 40 gallons), dense planting, and close monitoring are essential.
| Factor | Pea Puffer | Tiger Barb | Verdict |
|---|---|---|---|
| Temperature | 74–82°F | 68–79°F | ✅ 74–79°F |
| pH Range | 7.0–8.0 | 6.0–8.0 | ✅ 7.0–8.0 |
| Temperament | semi | semi | ⚠️ Monitor |
| Adult Size | 1 in | 2.75 in | ⚠️ 2.8× difference |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 40 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Pea Puffer — Carinotetraodon travancoricus
World's smallest pufferfish — intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.
Tiger Barb — Puntigrus tetrazona
Striking striped barbs that are notorious fin-nippers. Must be kept in groups of 6+ to redirect aggression within the school. Incompatible with long-finned fish.
Frequently Asked Questions
Can Pea Puffer live with Tiger Barb?
With significant caution and a larger tank. Pea Puffer and Tiger Barb can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 40 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Pea Puffer and Tiger Barb together?
A minimum of 40 gallons is recommended for keeping Pea Puffer and Tiger Barb together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Pea Puffer and Tiger Barb?
74–79°F
Is a Pea Puffer aggressive toward a Tiger Barb?
Pea Puffer is semi and Tiger Barb is semi. Narrow temperature overlap (74–79°F) — keeping the tank at exactly 75–78°F is needed for both species.