Compatibility Overview
Chili Rasbora and Clown Loach 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 | Clown Loach | Verdict |
|---|---|---|---|
| Temperature | 68–82°F | 77–86°F | ✅ 77–82°F |
| pH Range | 4.0–7.0 | 6.0–7.5 | ✅ 6.0–7.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 0.8 in | 12 in | ❌ 15× difference |
| Min. Group | 8+ | 5+ | See below |
| Min. Tank Size | 100 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
Clown Loach — Chromobotia macracanthus
Striking striped loach that grows very large. Peaceful with fish but will eat shrimp, snails and tiny fish.
Frequently Asked Questions
Can Chili Rasbora live with Clown Loach?
Generally not recommended. Chili Rasbora and Clown Loach 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 Clown Loach together?
A minimum of 100 gallons is recommended for keeping Chili Rasbora and Clown Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Chili Rasbora and Clown Loach?
77–82°F
Is a Chili Rasbora aggressive toward a Clown Loach?
Chili Rasbora is peaceful and Clown Loach is peaceful. Narrow temperature overlap (77–82°F) — keeping the tank at exactly 78–81°F is needed for both species.