Diamond Tetra and Keyhole Cichlid Compatibility Overview
Diamond Tetra and Keyhole Cichlid 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Diamond Tetra | Keyhole Cichlid | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 70โ82ยฐF | โ 75โ82ยฐF |
| pH Range | 5.5โ7.0 | 4.0โ7.5 | โ 5.5โ7.0 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 2.4 in | 4.3 in | โ Similar |
| Min. Group | 6+ | 2+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Diamond Tetra โ Moenkhausia pittieri
The Diamond Tetra is a popular freshwater fish known for its vibrant colors and peaceful nature. It is well-suited for community tanks and can thrive in a variety of water conditions. With a moderate activity level and a preference for schools, this species is a great addition to any beginner or intermediate aquarist's tank.
โ Full Diamond Tetra care guide
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.
Frequently Asked Questions
Can Diamond Tetra live with Keyhole Cichlid?
Yes, in a well-planned setup. Diamond Tetra and Keyhole Cichlid 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Diamond Tetra and Keyhole Cichlid together?
A minimum of 55 gallons is recommended for keeping Diamond Tetra and Keyhole Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Diamond Tetra and Keyhole Cichlid?
75โ82ยฐF โ inside Diamond Tetra's 75โ82ยฐF and Keyhole Cichlid's 70โ82ยฐF.
Is a Diamond Tetra aggressive toward a Keyhole Cichlid?
Diamond Tetra is peaceful and Keyhole Cichlid is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Diamond Tetra and Keyhole Cichlid
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 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. |