Compatibility Overview
Angelfish and Corydoras Catfish 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 75-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Angelfish | Corydoras Catfish | Verdict |
|---|---|---|---|
| Temperature | 74–84°F | 70–79°F | ✅ 74–79°F |
| pH Range | 6.0–7.5 | 6.0–8.0 | ✅ 6.0–7.5 |
| Temperament | semi | peaceful | ⚠️ Monitor |
| Adult Size | 6 in | 2.5 in | ⚠️ 2.4× difference |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 75 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Angelfish — Pterophyllum scalare
Elegant South American cichlids with long flowing fins. Generally peaceful but territorial when breeding and will eat very small fish.
Corydoras Catfish — Corydoras spp.
Armoured bottom-dwelling catfish that are peaceful with all non-aggressive species. Need fine sand substrate to protect delicate barbels.
Frequently Asked Questions
Can Angelfish live with Corydoras Catfish?
Yes, in a well-planned setup. Angelfish and Corydoras Catfish 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 75-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Angelfish and Corydoras Catfish together?
A minimum of 75 gallons is recommended for keeping Angelfish and Corydoras Catfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Corydoras Catfish?
74–79°F
Is a Angelfish aggressive toward a Corydoras Catfish?
Angelfish is semi and Corydoras Catfish is peaceful. Narrow temperature overlap (74–79°F) — keeping the tank at exactly 75–78°F is needed for both species.