Keyhole Cichlid and Red Eye Tetra Compatibility Overview
Keyhole Cichlid and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Keyhole Cichlid is peaceful and Red Eye Tetra is semi, 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 | Keyhole Cichlid | Red Eye Tetra | Verdict |
|---|---|---|---|
| Temperature | 70โ82ยฐF | 72โ79ยฐF | โ 72โ79ยฐF |
| pH Range | 4.0โ7.5 | 6.0โ8.0 | โ 6.0โ7.5 |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 4.3 in | 2.8 in | โ Similar |
| Min. Group | 2+ | 6+ | See below |
| Min. Tank Size | 55 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
Red Eye Tetra โ Moenkhausia sanctaefilomenae
The Red Eye Tetra is a popular freshwater fish known for its vibrant red eyes and sleek, silver body. They are generally peaceful and can be kept in a community tank with other non-aggressive species. Their moderate activity level makes them suitable for a variety of aquarium setups. With proper care, they can live up to 5 years.
Frequently Asked Questions
Can Keyhole Cichlid live with Red Eye Tetra?
Yes, in a well-planned setup. Keyhole Cichlid and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Keyhole Cichlid is peaceful and Red Eye Tetra is semi, 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 Keyhole Cichlid and Red Eye Tetra together?
A minimum of 55 gallons is recommended for keeping Keyhole Cichlid and Red Eye Tetra together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Keyhole Cichlid and Red Eye Tetra?
72โ79ยฐF โ inside Keyhole Cichlid's 70โ82ยฐF and Red Eye Tetra's 72โ79ยฐF.
Is a Keyhole Cichlid aggressive toward a Red Eye Tetra?
Keyhole Cichlid is peaceful and Red Eye Tetra is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Keyhole Cichlid and Red Eye Tetra
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. |