Peacock Cichlid and Swordtail Compatibility Overview
Peacock Cichlid and Swordtail can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Peacock Cichlid is semi and Swordtail is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Peacock Cichlid | Swordtail | Verdict |
|---|---|---|---|
| Temperature | 73โ84ยฐF | 65โ80ยฐF | โ 73โ80ยฐF |
| pH Range | 7.5โ9.0 | 7.0โ8.3 | โ 7.5โ8.3 |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 5.1 in | 5 in | โ Similar |
| Min. Group | 4+ | 3+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Peacock Cichlid โ Aulonocara stuartgranti
The Peacock Cichlid, Aulonocara nyassae, is a stunning fish with vibrant blue and yellow colors. These fish are known for their aggression and require a mature and well-maintained tank. They are best kept in pairs or in a species-specific tank. Careful attention must be given to water parameters and tank setup to ensure their health and well-being.
โ Full Peacock Cichlid care guide
Swordtail โ Xiphophorus hellerii
Hardy livebearer with a distinctive elongated lower tail fin in males. Peaceful community fish that tolerate a wide temperature range.
Frequently Asked Questions
Can Peacock Cichlid live with Swordtail?
Yes, in a well-planned setup. Peacock Cichlid and Swordtail can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Peacock Cichlid is semi and Swordtail is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Peacock Cichlid and Swordtail together?
A minimum of 55 gallons is recommended for keeping Peacock Cichlid and Swordtail together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Peacock Cichlid and Swordtail?
73โ80ยฐF โ inside Peacock Cichlid's 73โ84ยฐF and Swordtail's 65โ80ยฐF.
Is a Peacock Cichlid aggressive toward a Swordtail?
Peacock Cichlid is semi and Swordtail is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Peacock Cichlid and Swordtail
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 64 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 90 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 125 gal | Best when keeping larger schools or reducing territorial pressure. |