Compatibility Overview
Pea Puffer and Zebra Danio 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 | Pea Puffer | Zebra Danio | Verdict |
|---|---|---|---|
| Temperature | 74–82°F | 64–82°F | ✅ 74–82°F |
| pH Range | 7.0–8.0 | 6.5–8.0 | ✅ 7.0–8.0 |
| Temperament | semi | peaceful | ⚠️ Monitor |
| Adult Size | 1 in | 2 in | ⚠️ 2.0× difference |
| Min. Group | 1+ | 5+ | 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.
Zebra Danio — Danio rerio
Extremely hardy, fast-moving schooling fish tolerant of a wide temperature range. Active top-to-mid swimmers compatible with most community fish.
Frequently Asked Questions
Can Pea Puffer live with Zebra Danio?
Yes, in a well-planned setup. Pea Puffer and Zebra Danio 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 Pea Puffer and Zebra Danio together?
A minimum of 40 gallons is recommended for keeping Pea Puffer and Zebra Danio together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Pea Puffer and Zebra Danio?
74–82°F
Is a Pea Puffer aggressive toward a Zebra Danio?
Pea Puffer is semi and Zebra Danio is peaceful. Minor aggression possible from the semi-aggressive species; provide hiding spots.