Compatibility Overview
Corydoras Catfish 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 | Corydoras Catfish | Zebra Danio | Verdict |
|---|---|---|---|
| Temperature | 70–79°F | 64–82°F | ✅ 70–79°F |
| pH Range | 6.0–8.0 | 6.5–8.0 | ✅ 6.5–8.0 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 2.5 in | 2 in | ✅ Similar |
| Min. Group | 6+ | 5+ | See below |
| Min. Tank Size | 40 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Corydoras Catfish — Corydoras spp.
Armoured bottom-dwelling catfish that are peaceful with all non-aggressive species. Need fine sand substrate to protect delicate barbels.
→ Full Corydoras Catfish 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 Corydoras Catfish live with Zebra Danio?
Yes, in a well-planned setup. Corydoras Catfish 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 Corydoras Catfish and Zebra Danio together?
A minimum of 40 gallons is recommended for keeping Corydoras Catfish and Zebra Danio together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Corydoras Catfish and Zebra Danio?
70–79°F
Is a Corydoras Catfish aggressive toward a Zebra Danio?
Corydoras Catfish is peaceful and Zebra Danio is peaceful. No major aggression issues are expected between these species.