Cardinal Tetra and Jewel Cichlid Compatibility Overview
Cardinal Tetra and Jewel Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. 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 | Cardinal Tetra | Jewel Cichlid | Verdict |
|---|---|---|---|
| Temperature | 73โ82ยฐF | 72โ82ยฐF | โ 73โ82ยฐF |
| pH Range | 4.5โ7.0 | 6.0โ7.8 | โ 6.0โ7.0 |
| Temperament | peaceful | aggressive | โ Risk |
| Adult Size | 1.5 in | 5.9 in | โ ๏ธ 3.9ร difference |
| Min. Group | 6+ | 2+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Cardinal Tetra โ Paracheirodon axelrodi
Brilliant red-and-blue schooling fish from the Rio Negro. Prefers soft, acidic, warm water โ a natural companion for discus.
โ Full Cardinal Tetra care guide
Jewel Cichlid โ Hemichromis bimaculatus
The Jewel Cichlid, Hemichromis bimaculatus, is a vibrant and territorial fish popular in the aquarium trade. They require a spacious tank with hiding spots and can be moderately aggressive. With proper care, they can be a rewarding addition to the home aquarium.
Frequently Asked Questions
Can Cardinal Tetra live with Jewel Cichlid?
Generally not recommended. Cardinal Tetra and Jewel Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. 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 Cardinal Tetra and Jewel Cichlid together?
A minimum of 75 gallons is recommended for keeping Cardinal Tetra and Jewel Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Cardinal Tetra and Jewel Cichlid?
73โ82ยฐF โ inside Cardinal Tetra's 73โ82ยฐF and Jewel Cichlid's 72โ82ยฐF.
Is a Cardinal Tetra aggressive toward a Jewel Cichlid?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Cardinal Tetra and Jewel Cichlid
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 75 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 125 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 150 gal | Best when keeping larger schools or reducing territorial pressure. |