Compatibility Overview
Chili Rasbora and Goldfish 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 | Goldfish | Verdict |
|---|---|---|---|
| Temperature | 68–82°F | 50–74°F | ✅ 68–74°F |
| pH Range | 4.0–7.0 | 6.5–8.0 | ⚠️ 6.5–7.0 (narrow) |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 0.8 in | 12 in | ❌ 15× difference |
| Min. Group | 8+ | 1+ | 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
Goldfish — Carassius auratus
Classic pond and aquarium fish that prefer cool water. Heavy waste producers that require robust filtration. Will eat small fish and shrimp.
Frequently Asked Questions
Can Chili Rasbora live with Goldfish?
Generally not recommended. Chili Rasbora and Goldfish 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 Goldfish together?
A minimum of 100 gallons is recommended for keeping Chili Rasbora and Goldfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Chili Rasbora and Goldfish?
68–74°F
Is a Chili Rasbora aggressive toward a Goldfish?
Chili Rasbora is peaceful and Goldfish is peaceful. Chili Rasbora requires tropical water; Goldfish requires cold water. These environments are incompatible.