Betta Fish and Keyhole Cichlid Compatibility Overview
Betta Fish and Keyhole Cichlid can potentially coexist, but the combination requires careful attention. Betta Fish is aggressive and Keyhole Cichlid is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
| Factor | Betta Fish | Keyhole Cichlid | Verdict |
|---|---|---|---|
| Temperature | 76โ82ยฐF | 70โ82ยฐF | โ 76โ82ยฐF |
| pH Range | 6.5โ7.5 | 4.0โ7.5 | โ 6.5โ7.5 |
| Temperament | aggressive | peaceful | โ Risk |
| Adult Size | 3 in | 4.3 in | โ Similar |
| Min. Group | 1+ | 2+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Betta Fish โ Betta splendens
Vibrant labyrinth fish from Southeast Asia. Males are highly territorial toward other bettas and fin-nippers; compatible with many peaceful species in large, planted tanks.
โ Full Betta Fish 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 Betta Fish live with Keyhole Cichlid?
With significant caution and a larger tank. Betta Fish and Keyhole Cichlid can potentially coexist, but the combination requires careful attention. Betta Fish is aggressive and Keyhole Cichlid is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Betta Fish and Keyhole Cichlid together?
A minimum of 55 gallons is recommended for keeping Betta Fish and Keyhole Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Betta Fish and Keyhole Cichlid?
76โ82ยฐF โ inside Betta Fish's 76โ82ยฐF and Keyhole Cichlid's 70โ82ยฐF.
Is a Betta Fish aggressive toward a Keyhole Cichlid?
Betta Fish is aggressive and Keyhole Cichlid is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.
Related Compatibility Guides
Tank Size for Betta Fish 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 | 100 gal | Best when keeping larger schools or reducing territorial pressure. |