Compatibility Overview
Peacock Cichlid and Tiger Barb can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
| Factor | Peacock Cichlid | Tiger Barb | Verdict |
|---|---|---|---|
| Temperature | 75–81°F | 68–79°F | ✅ 75–79°F |
| pH Range | 7.5–8.5 | 6.0–8.0 | ⚠️ 7.5–8.0 (narrow) |
| Temperament | aggressive | semi | ❌ Risk |
| Adult Size | 3.1 in | 2.75 in | ✅ Similar |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 55 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Peacock Cichlid — Aquarium species
The Peacock Cichlid, Aulonocara nyassae, is a stunning fish with vibrant blue and yellow colors. These fish are known for their aggression and require a mature and well-maintained tank. They are best kept in pairs or in a species-specific tank. Careful attention must be given to water parameters and tank setup to ensure their health and well-being.
→ Full Peacock Cichlid care guide
Tiger Barb — Puntigrus tetrazona
Striking striped barbs that are notorious fin-nippers. Must be kept in groups of 6+ to redirect aggression within the school. Incompatible with long-finned fish.
Frequently Asked Questions
Can Peacock Cichlid live with Tiger Barb?
With significant caution and a larger tank. Peacock Cichlid and Tiger Barb can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Peacock Cichlid and Tiger Barb together?
A minimum of 55 gallons is recommended for keeping Peacock Cichlid and Tiger Barb together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Peacock Cichlid and Tiger Barb?
75–79°F
Is a Peacock Cichlid aggressive toward a Tiger Barb?
Peacock Cichlid is aggressive and Tiger Barb is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Compatibility score breakdown
The overall score is weighted across water chemistry, behavior, adult size, swimming zone, and social needs. A score is a planning aid—not a guarantee for individual fish.
| Factor | Score |
|---|---|
| Temperature | 67/100 |
| Ph | 50/100 |
| Temperament | 25/100 |
| Adult Size | 100/100 |
| Swim Zone | 68/100 |
| Social Needs | 92/100 |
Tank size scenarios
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 125 gal | Best when keeping larger schools or reducing territorial pressure. |