Compatibility Overview
Angelfish and Clown Loach 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 100-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Angelfish | Clown Loach | Verdict |
|---|---|---|---|
| Temperature | 74–84°F | 77–86°F | ✅ 77–84°F |
| pH Range | 6.0–7.5 | 6.0–7.5 | ✅ 6.0–7.5 |
| Temperament | semi | peaceful | ⚠️ Monitor |
| Adult Size | 6 in | 12 in | ⚠️ 2.0× difference |
| Min. Group | 1+ | 5+ | See below |
| Min. Tank Size | 100 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.
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 Angelfish live with Clown Loach?
Yes, in a well-planned setup. Angelfish and Clown Loach 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 100-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Angelfish and Clown Loach together?
A minimum of 100 gallons is recommended for keeping Angelfish and Clown Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Clown Loach?
77–84°F
Is a Angelfish aggressive toward a Clown Loach?
Angelfish is semi and Clown Loach is peaceful. Minor aggression possible from the semi-aggressive species; provide hiding spots.