Compatibility Overview
Chili Rasbora and Zebra Danio can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Chili Rasbora | Zebra Danio | Verdict |
|---|---|---|---|
| Temperature | 68–82°F | 64–82°F | ✅ 68–82°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 | 2 in | ⚠️ 2.5× difference |
| Min. Group | 8+ | 5+ | See below |
| Min. Tank Size | 40 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
Zebra Danio — Danio rerio
Extremely hardy, fast-moving schooling fish tolerant of a wide temperature range. Active top-to-mid swimmers compatible with most community fish.
Frequently Asked Questions
Can Chili Rasbora live with Zebra Danio?
Yes, in a well-planned setup. Chili Rasbora and Zebra Danio can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges, and neither poses a major aggression risk to the other. A minimum 40-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Chili Rasbora and Zebra Danio together?
A minimum of 40 gallons is recommended for keeping Chili Rasbora and Zebra Danio together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Chili Rasbora and Zebra Danio?
68–82°F
Is a Chili Rasbora aggressive toward a Zebra Danio?
Chili Rasbora is peaceful and Zebra Danio is peaceful. Limited pH overlap (6.5–7.0) — maintain pH carefully within this narrow window.