Compatibility Overview
Bristlenose Pleco 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 | Bristlenose Pleco | Clown Loach | Verdict |
|---|---|---|---|
| Temperature | 60–80°F | 77–86°F | ⚠️ 77–80°F (narrow) |
| pH Range | 6.5–7.5 | 6.0–7.5 | ✅ 6.5–7.5 |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 5 in | 12 in | ⚠️ 2.4× difference |
| Min. Group | 1+ | 5+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Bristlenose Pleco — Ancistrus sp.
Hardy armoured catfish that grazes on algae. Peaceful with virtually all species; tolerates a wide temperature range.
→ Full Bristlenose Pleco care guide
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 Bristlenose Pleco live with Clown Loach?
Yes, in a well-planned setup. Bristlenose Pleco 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 Bristlenose Pleco and Clown Loach together?
A minimum of 100 gallons is recommended for keeping Bristlenose Pleco and Clown Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Bristlenose Pleco and Clown Loach?
77–80°F (narrow)
Is a Bristlenose Pleco aggressive toward a Clown Loach?
Bristlenose Pleco is peaceful and Clown Loach is peaceful. Narrow temperature overlap (77–80°F) — keeping the tank at exactly 78–79°F is needed for both species.