Peacock Cichlid and Rainbow Shark Compatibility Overview
Peacock Cichlid and Rainbow Shark can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. Both are semi, so give them a larger, well-planted tank and watch how they settle in. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Peacock Cichlid | Rainbow Shark | Verdict |
|---|---|---|---|
| Temperature | 73โ84ยฐF | 72โ79ยฐF | โ 73โ79ยฐF |
| pH Range | 7.5โ9.0 | 6.5โ7.5 | โ ๏ธ 7.5โ7.5 (narrow) |
| Temperament | semi | semi | โ ๏ธ Monitor |
| Adult Size | 5.1 in | 6 in | โ Similar |
| Min. Group | 4+ | 1+ | See below |
| Min. Tank Size | 75 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
Rainbow Shark โ Epalzeorhynchos frenatum
Active bottom dweller that becomes territorial at maturity. One per tank; avoid other shark-like or bottom-dwelling species.
Frequently Asked Questions
Can Peacock Cichlid live with Rainbow Shark?
With significant caution and a larger tank. Peacock Cichlid and Rainbow Shark can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. Both are semi, so give them a larger, well-planted tank and watch how they settle in. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Peacock Cichlid and Rainbow Shark together?
A minimum of 75 gallons is recommended for keeping Peacock Cichlid and Rainbow Shark together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Peacock Cichlid and Rainbow Shark?
73โ79ยฐF โ inside Peacock Cichlid's 73โ84ยฐF and Rainbow Shark's 72โ79ยฐF.
Is a Peacock Cichlid aggressive toward a Rainbow Shark?
Peacock Cichlid is semi and Rainbow Shark is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Peacock Cichlid and Rainbow Shark
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 75 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 125 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 150 gal | Best when keeping larger schools or reducing territorial pressure. |