Compatibility Overview
Chili Rasbora and Foxface Rabbitfish are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
| Factor | Chili Rasbora | Foxface Rabbitfish | Verdict |
|---|---|---|---|
| Temperature | 68–82°F | 73–81°F | ✅ 73–81°F |
| pH Range | 4.0–7.0 | 8.0–8.3 | ❌ No overlap |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 0.8 in | 3.9 in | ❌ 5× difference |
| Min. Group | 8+ | 1+ | See below |
| Min. Tank Size | 75 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
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
Foxface Rabbitfish — Aquarium species
The Foxface Rabbitfish is a vibrant and peaceful addition to the marine aquarium. With its striking yellow coloration and dark spots, it adds a splash of color to the tank. They are known for their gregarious nature and can be kept in groups of 2-3. This species is suitable for beginners and intermediate aquarists.
Frequently Asked Questions
Can Chili Rasbora live with Foxface Rabbitfish?
Generally not recommended. Chili Rasbora and Foxface Rabbitfish are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
What tank size do I need for Chili Rasbora and Foxface Rabbitfish together?
A minimum of 75 gallons is recommended for keeping Chili Rasbora and Foxface Rabbitfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Chili Rasbora and Foxface Rabbitfish?
73–81°F
Is a Chili Rasbora aggressive toward a Foxface Rabbitfish?
Chili Rasbora is peaceful and Foxface Rabbitfish is semi. These animals require different water types and cannot share one aquarium.
Related Compatibility Guides
Compatibility score breakdown
The overall score is weighted across water chemistry, behavior, adult size, swimming zone, and social needs. A score is a planning aid—not a guarantee for individual fish.
| Factor | Score |
|---|---|
| Temperature | 100/100 |
| Ph | 0/100 |
| Temperament | 75/100 |
| Adult Size | 38/100 |
| Swim Zone | 68/100 |
| Social Needs | 92/100 |
Tank size scenarios
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 75 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 125 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 150 gal | Best when keeping larger schools or reducing territorial pressure. |