Hillstream Loach and Severum Cichlid Compatibility Overview
Hillstream Loach and Severum 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 | Hillstream Loach | Severum Cichlid | Verdict |
|---|---|---|---|
| Temperature | 68โ75ยฐF | 72โ84ยฐF | โ ๏ธ 72โ75ยฐF (narrow) |
| pH Range | 6.0โ7.5 | 5.5โ7.0 | โ 6.0โ7.0 |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 2.6 in | 11.8 in | โ 5ร difference |
| Min. Group | 4+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Hillstream Loach โ Sewellia lineolata
Sewellia lineolata, known as the Hillstream Loach, is a fascinating species for aquarists. These fish require a well-oxygenated, clear water environment with plenty of hiding spots. With a lifespan of 7 years, they are a long-term commitment. Their olive green color and slender body shape add a unique aesthetic to the tank.
โ Full Hillstream Loach 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 Hillstream Loach live with Severum Cichlid?
Generally not recommended. Hillstream Loach and Severum 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 Hillstream Loach and Severum Cichlid together?
A minimum of 100 gallons is recommended for keeping Hillstream Loach and Severum Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Hillstream Loach and Severum Cichlid?
72โ75ยฐF (narrow) โ inside Hillstream Loach's 68โ75ยฐF and Severum Cichlid's 72โ84ยฐF.
Is a Hillstream Loach aggressive toward a Severum Cichlid?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Hillstream Loach 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 | 180 gal | Best when keeping larger schools or reducing territorial pressure. |