Harlequin Rasbora and Severum Cichlid Compatibility Overview
Harlequin Rasbora and Severum Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Harlequin Rasbora | Severum Cichlid | Verdict |
|---|---|---|---|
| Temperature | 72โ81ยฐF | 72โ84ยฐF | โ 72โ81ยฐF |
| pH Range | 5.5โ7.5 | 5.5โ7.0 | โ 5.5โ7.0 |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 1.75 in | 11.8 in | โ 7ร difference |
| Min. Group | 8+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
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.
โ Full Harlequin Rasbora care guide
Severum Cichlid โ Heros efasciatus
The Severum Cichlid, known for its vibrant colors and peaceful nature, is a popular choice for freshwater aquariums. They have a lifespan of around 5 years and require a minimum tank size of 80 liters. These fish are not schooling fish but are known to be gentle and compatible with a variety of tank mates.
Frequently Asked Questions
Can Harlequin Rasbora live with Severum Cichlid?
Generally not recommended. Harlequin Rasbora and Severum Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Harlequin Rasbora and Severum Cichlid together?
A minimum of 100 gallons is recommended for keeping Harlequin Rasbora and Severum Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Harlequin Rasbora and Severum Cichlid?
72โ81ยฐF โ inside Harlequin Rasbora's 72โ81ยฐF and Severum Cichlid's 72โ84ยฐF.
Is a Harlequin Rasbora aggressive toward a Severum Cichlid?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Harlequin Rasbora and Severum 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. |