Chili Rasbora and Ember Tetra Compatibility Overview
Short answer: Yes. Both do well at 73-82°F and both are peaceful. Match the tank size and group size in the table below and both should do well.
Chili Rasbora and Ember Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Chili Rasbora | Ember Tetra | Verdict |
|---|---|---|---|
| Temperature | 68–82°F | 73–84°F | ✅ 73–82°F |
| pH Range | 4.0–7.0 | 5.5–7.0 | ✅ 5.5–7.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 0.8 in | 0.8 in | ✅ Similar |
| Min. Group | 8+ | 8+ | See below |
| Min. Tank Size | 20 gallons (for both species) | — | |
Compatibility Positives
Caution Points
Species Profiles
Chili Rasbora — Boraras brigittae
Vivid red nano fish from Borneo blackwater habitats. Extremely small — only safe with fish too small to swallow them.
→ Full Chili Rasbora care guide
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.
Frequently Asked Questions
Can Chili Rasbora live with Ember Tetra?
Yes, in a well-planned setup. Chili Rasbora and Ember Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the 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 Chili Rasbora and Ember Tetra together?
A minimum of 20 gallons is recommended for keeping Chili Rasbora and Ember Tetra together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Chili Rasbora and Ember Tetra?
73–82°F — inside Chili Rasbora's 68–82°F and Ember Tetra's 73–84°F.
Is a Chili Rasbora aggressive toward a Ember Tetra?
Chili Rasbora is peaceful and Ember Tetra is peaceful. No major aggression issues are expected between these species.
More Good Tank Mates for Chili Rasbora and Ember Tetra
The highest-scoring compatible partners for each species in our compatibility data.
For Chili Rasbora
- Black Phantom Tetra — 96/100
- Cardinal Tetra — 96/100
- Black Neon Tetra — 93/100
- Pygmy Corydoras — 93/100
- Neon Tetra — 91/100
For Ember Tetra
- Cardinal Tetra — 96/100
- Black Neon Tetra — 92/100
- Black Phantom Tetra — 92/100
- Dwarf Chain Loach — 92/100
- Diamond Tetra — 90/100
Related Compatibility Guides
Tank Size for Chili Rasbora and Ember Tetra
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. |