Congo Tetra and Green Terror Cichlid Compatibility Overview
Congo Tetra and Green Terror Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their ranges meet only at 73β75Β°F, which leaves no margin for a heater drifting or a warm room. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Congo Tetra | Green Terror Cichlid | Verdict |
|---|---|---|---|
| Temperature | 73β82Β°F | 68β75Β°F | β οΈ 73β75Β°F (narrow) |
| pH Range | 6.0β7.5 | 6.5β8.0 | β 6.5β7.5 |
| Temperament | peaceful | aggressive | β Risk |
| Adult Size | 3.1 in | 11.8 in | β οΈ 3.8Γ difference |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | β | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Congo Tetra β Phenacogrammus interruptus
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.
β Full Congo Tetra care guide
Green Terror Cichlid β Andinoacara rivulatus
The Green Terror Cichlid is a popular choice for experienced aquarists due to its striking appearance and vibrant colors. They are known for their aggression and should be kept in a species-specific tank. Their tall, laterally compressed bodies and vivid coloration make them visually appealing but require careful handling due to their potentially aggressiveβ¦
Frequently Asked Questions
Can Congo Tetra live with Green Terror Cichlid?
Generally not recommended. Congo Tetra and Green Terror Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their ranges meet only at 73β75Β°F, which leaves no margin for a heater drifting or a warm room. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Congo Tetra and Green Terror Cichlid together?
A minimum of 100 gallons is recommended for keeping Congo Tetra and Green Terror Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Congo Tetra and Green Terror Cichlid?
73β75Β°F (narrow) β inside Congo Tetra's 73β82Β°F and Green Terror Cichlid's 68β75Β°F.
Is a Congo Tetra aggressive toward a Green Terror Cichlid?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Congo Tetra and Green Terror Cichlid
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. |