Discus and Green Terror Cichlid Compatibility Overview
Discus and Green Terror Cichlid are generally not recommended to be housed together. There is no shared temperature: Discus needs 82β88Β°F and Green Terror Cichlid needs 68β75Β°F. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Discus | Green Terror Cichlid | Verdict |
|---|---|---|---|
| Temperature | 82β88Β°F | 68β75Β°F | β No overlap |
| pH Range | 5.0β7.0 | 6.5β8.0 | β οΈ 6.5β7.0 (narrow) |
| Temperament | semi | aggressive | β Risk |
| Adult Size | 8 in | 11.8 in | β Similar |
| Min. Group | 5+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | β | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Discus β Symphysodon spp.
The 'king of the aquarium' β beautiful but demanding. Requires very warm, soft, acidic water that excludes most community fish.
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 Discus live with Green Terror Cichlid?
Generally not recommended. Discus and Green Terror Cichlid are generally not recommended to be housed together. There is no shared temperature: Discus needs 82β88Β°F and Green Terror Cichlid needs 68β75Β°F. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Discus and Green Terror Cichlid together?
A minimum of 100 gallons is recommended for keeping Discus and Green Terror Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Discus and Green Terror Cichlid?
There is no safe shared range: Discus needs 82β88Β°F and Green Terror Cichlid needs 68β75Β°F.
Is a Discus aggressive toward a Green Terror Cichlid?
Discus is semi and Green Terror Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.
Related Compatibility Guides
Tank Size for Discus 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. |