Keyhole Cichlid and Silver Dollar Compatibility Overview
Keyhole Cichlid and Silver Dollar can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Keyhole Cichlid | Silver Dollar | Verdict |
|---|---|---|---|
| Temperature | 70โ82ยฐF | 75โ82ยฐF | โ 75โ82ยฐF |
| pH Range | 4.0โ7.5 | 6.0โ7.0 | โ 6.0โ7.0 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 4.3 in | 5.9 in | โ Similar |
| Min. Group | 2+ | 5+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Keyhole Cichlid โ Cleithracara maronii
The Keyhole Cichlid is a popular choice for beginners due to its relatively easy care and peaceful temperament. These fish are known for their distinct keyhole marking and vibrant coloration. They do well in a community tank with other peaceful species, but should be provided with plenty of hiding spots to feel secure.
โ Full Keyhole Cichlid care guide
Silver Dollar โ Metynnis argenteus
The Metynnis argenteus, known as the Silver Dollar fish, is a popular freshwater species with a distinctive silver color and disc-shaped body. They require a spacious tank and are best kept in groups to prevent bullying. Their peaceful nature makes them suitable for community tanks, but they are not known to school.
Frequently Asked Questions
Can Keyhole Cichlid live with Silver Dollar?
Yes, in a well-planned setup. Keyhole Cichlid and Silver Dollar can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Keyhole Cichlid and Silver Dollar together?
A minimum of 75 gallons is recommended for keeping Keyhole Cichlid and Silver Dollar together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Keyhole Cichlid and Silver Dollar?
75โ82ยฐF โ inside Keyhole Cichlid's 70โ82ยฐF and Silver Dollar's 75โ82ยฐF.
Is a Keyhole Cichlid aggressive toward a Silver Dollar?
Keyhole Cichlid is peaceful and Silver Dollar is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Keyhole Cichlid and Silver Dollar
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. |