Angelfish and Clown Loach Compatibility Overview
Short answer: Yes. Both do well at 77-84°F. Match the tank size and group size in the table below and both should do well.
Angelfish and Clown Loach can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Angelfish is semi and Clown Loach is peaceful, so give them room and cover rather than assuming they will ignore each 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. Angelfish is semi and Clown Loach is peaceful, so give them room and cover rather than assuming they will ignore each 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 — inside Angelfish's 74–84°F and Clown Loach's 77–86°F.
Is a Angelfish aggressive toward a Clown Loach?
Angelfish is semi and Clown Loach is peaceful. No major aggression issues are expected between these species.
More Good Tank Mates for Angelfish and Clown Loach
The highest-scoring compatible partners for each species in our compatibility data.
For Angelfish
- Silver Dollar — 90/100
- African Butterfly Fish — 89/100
- Bolivian Ram — 89/100
- Congo Tetra — 88/100
- Moonlight Gourami — 88/100
For Clown Loach
- Moonlight Gourami — 93/100
- African Butterfly Fish — 87/100
- Three Spot Gourami — 87/100
- Silver Dollar — 86/100
- Bosemans Rainbowfish — 84/100
Related Compatibility Guides
Tank Size for Angelfish and Clown Loach
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 100 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 150 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 220 gal | Best when keeping larger schools or reducing territorial pressure. |