Compatibility Overview
Clown Loach and Discus 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 | Clown Loach | Discus | Verdict |
|---|---|---|---|
| Temperature | 77–86°F | 82–88°F | ✅ 82–86°F |
| pH Range | 6.0–7.5 | 5.0–7.0 | ✅ 6.0–7.0 |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 12 in | 8 in | ✅ Similar |
| Min. Group | 5+ | 5+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Clown Loach — Chromobotia macracanthus
Striking striped loach that grows very large. Peaceful with fish but will eat shrimp, snails and tiny fish.
Discus — Symphysodon spp.
The 'king of the aquarium' — beautiful but demanding. Requires very warm, soft, acidic water that excludes most community fish.
Frequently Asked Questions
Can Clown Loach live with Discus?
Yes, in a well-planned setup. Clown Loach and Discus 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 Clown Loach and Discus together?
A minimum of 100 gallons is recommended for keeping Clown Loach and Discus together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Clown Loach and Discus?
82–86°F
Is a Clown Loach aggressive toward a Discus?
Clown Loach is peaceful and Discus is semi. Narrow temperature overlap (82–86°F) — keeping the tank at exactly 83–85°F is needed for both species.