Neon Rainbowfish and Severum Cichlid Compatibility Overview
Neon Rainbowfish and Severum Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Neon Rainbowfish | Severum Cichlid | Verdict |
|---|---|---|---|
| Temperature | 73โ82ยฐF | 72โ84ยฐF | โ 73โ82ยฐF |
| pH Range | 6.8โ7.5 | 5.5โ7.0 | โ ๏ธ 6.8โ7.0 (narrow) |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 3.1 in | 11.8 in | โ ๏ธ 3.8ร difference |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Neon Rainbowfish โ Melanotaenia praecox
The Neon Rainbowfish, known for its vibrant colors, is a popular addition to freshwater aquariums. These fish are generally peaceful and can be kept in community tanks with other peaceful species. They require a well-maintained tank with a good water flow and plenty of swimming space. Regular water changes and a balanced diet are essential for their health.
โ Full Neon Rainbowfish 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 Neon Rainbowfish live with Severum Cichlid?
Generally not recommended. Neon Rainbowfish and Severum Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Neon Rainbowfish and Severum Cichlid together?
A minimum of 100 gallons is recommended for keeping Neon Rainbowfish and Severum Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Neon Rainbowfish and Severum Cichlid?
73โ82ยฐF โ inside Neon Rainbowfish's 73โ82ยฐF and Severum Cichlid's 72โ84ยฐF.
Is a Neon Rainbowfish aggressive toward a Severum Cichlid?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Neon Rainbowfish 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. |