Frontosa Cichlid and Harlequin Rasbora Compatibility Overview
Frontosa Cichlid and Harlequin Rasbora are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges do not meet: Frontosa Cichlid wants 8.0โ9.0 and Harlequin Rasbora wants 5.5โ7.5. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Frontosa Cichlid | Harlequin Rasbora | Verdict |
|---|---|---|---|
| Temperature | 73โ81ยฐF | 72โ81ยฐF | โ 73โ81ยฐF |
| pH Range | 8.0โ9.0 | 5.5โ7.5 | โ No overlap |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 10.0 in | 1.75 in | โ 6ร difference |
| Min. Group | 5+ | 8+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Frontosa Cichlid โ Cyphotilapia frontosa
The Frontosa Cichlid is a popular aquarium fish known for its vibrant colors and peaceful demeanor. They are suitable for beginners and can thrive in a well-maintained community tank. Providing ample space and avoiding overcrowding is essential for their well-being.
โ Full Frontosa Cichlid care guide
Harlequin Rasbora โ Trigonostigma heteromorpha
Active mid-level schooling fish with a distinctive black triangular patch. One of the best all-around community tank fish.
Frequently Asked Questions
Can Frontosa Cichlid live with Harlequin Rasbora?
Generally not recommended. Frontosa Cichlid and Harlequin Rasbora are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges do not meet: Frontosa Cichlid wants 8.0โ9.0 and Harlequin Rasbora wants 5.5โ7.5. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Frontosa Cichlid and Harlequin Rasbora together?
A minimum of 100 gallons is recommended for keeping Frontosa Cichlid and Harlequin Rasbora together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Frontosa Cichlid and Harlequin Rasbora?
73โ81ยฐF โ inside Frontosa Cichlid's 73โ81ยฐF and Harlequin Rasbora's 72โ81ยฐF.
Is a Frontosa Cichlid aggressive toward a Harlequin Rasbora?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Frontosa Cichlid and Harlequin Rasbora
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 228 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 350 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 450 gal | Best when keeping larger schools or reducing territorial pressure. |