Compatibility Overview
Ember Tetra and Pea Puffer 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 | Ember Tetra | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 73–84°F | 74–82°F | ✅ 74–82°F |
| pH Range | 5.5–7.0 | 7.0–8.0 | ⚠️ 7.0–7.0 (narrow) |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 0.8 in | 1 in | ✅ Similar |
| Min. Group | 8+ | 1+ | See below |
| Min. Tank Size | 40 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Ember Tetra — Hyphessobrycon amandae
Tiny orange-red schooling tetra that is among the most adaptable nano fish. Peaceful with everything too small to eat them.
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 Ember Tetra live with Pea Puffer?
With significant caution and a larger tank. Ember Tetra and Pea Puffer 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 Ember Tetra and Pea Puffer together?
A minimum of 40 gallons is recommended for keeping Ember Tetra and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Ember Tetra and Pea Puffer?
74–82°F
Is a Ember Tetra aggressive toward a Pea Puffer?
Ember Tetra is peaceful and Pea Puffer is semi. pH ranges barely or do not overlap: Ember Tetra prefers 5.5–7.0; Pea Puffer prefers 7.0–8.0.