Lionfish and Severum Cichlid Compatibility Overview
Lionfish and Severum Cichlid are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Lionfish wants 8.1โ8.4 and Severum Cichlid wants 5.5โ7.0. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Lionfish | Severum Cichlid | Verdict |
|---|---|---|---|
| Temperature | 72โ82ยฐF | 72โ84ยฐF | โ 72โ82ยฐF |
| pH Range | 8.1โ8.4 | 5.5โ7.0 | โ No overlap |
| Temperament | aggressive | semi | โ Risk |
| Adult Size | 15.0 in | 11.8 in | โ Similar |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Lionfish โ Pterois volitans
Lionfish are popular saltwater aquarium fish known for their striking colors and intimidating spines. These fish require a large tank and careful attention to water parameters. Aggressive by nature, they can be harmful to smaller fish and invertebrates.
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 Lionfish live with Severum Cichlid?
Generally not recommended. Lionfish and Severum Cichlid are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Lionfish wants 8.1โ8.4 and Severum Cichlid wants 5.5โ7.0. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Lionfish and Severum Cichlid together?
A minimum of 100 gallons is recommended for keeping Lionfish and Severum Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Lionfish and Severum Cichlid?
72โ82ยฐF โ inside Lionfish's 72โ82ยฐF and Severum Cichlid's 72โ84ยฐF.
Is a Lionfish aggressive toward a Severum Cichlid?
Lionfish is aggressive and Severum Cichlid is semi. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.
Related Compatibility Guides
Tank Size for Lionfish 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 | 120 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 180 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. |