Compatibility Overview
Congo Tetra and Tiger Barb 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 40-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Congo Tetra | Tiger Barb | Verdict |
|---|---|---|---|
| Temperature | 72–79°F | 68–79°F | ✅ 72–79°F |
| pH Range | 6.0–7.0 | 6.0–8.0 | ✅ 6.0–7.0 |
| Temperament | aggressive | semi | ❌ Risk |
| Adult Size | 1.6 in | 2.75 in | ✅ Similar |
| Min. Group | 6+ | 6+ | See below |
| Min. Tank Size | 40 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Congo Tetra — Aquarium species
The Congo Tetra is a vibrant and active fish that thrives in a well-maintained freshwater aquarium. With its striking coloration and peaceful nature, it's a great addition to any community tank. This species is best kept in groups and requires a spacious tank with plenty of swimming space. They are known for their playful nature and can be seen darting aroun
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 Congo Tetra live with Tiger Barb?
Yes, in a well-planned setup. Congo Tetra and Tiger Barb 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 40-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Congo Tetra and Tiger Barb together?
A minimum of 40 gallons is recommended for keeping Congo Tetra and Tiger Barb together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Congo Tetra and Tiger Barb?
72–79°F
Is a Congo Tetra aggressive toward a Tiger Barb?
Congo Tetra 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 | 100/100 |
| Ph | 100/100 |
| Temperament | 25/100 |
| Adult Size | 100/100 |
| Swim Zone | 68/100 |
| Social Needs | 85/100 |
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 | 40 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 55 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 90 gal | Best when keeping larger schools or reducing territorial pressure. |