Keyhole Cichlid and Pea Puffer Compatibility Overview
Keyhole Cichlid and Pea Puffer can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
| Factor | Keyhole Cichlid | Pea Puffer | Verdict |
|---|---|---|---|
| Temperature | 70โ82ยฐF | 74โ82ยฐF | โ 74โ82ยฐF |
| pH Range | 4.0โ7.5 | 7.0โ8.0 | โ ๏ธ 7.0โ7.5 (narrow) |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 4.3 in | 1 in | โ 4ร difference |
| Min. Group | 2+ | 1+ | 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
Pea Puffer โ Carinotetraodon travancoricus
World's smallest pufferfish โ intensely territorial and nippy despite tiny size. Will attack fins and eat shrimp and snails.
Frequently Asked Questions
Can Keyhole Cichlid live with Pea Puffer?
With significant caution and a larger tank. Keyhole Cichlid and Pea Puffer can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Keyhole Cichlid and Pea Puffer together?
A minimum of 55 gallons is recommended for keeping Keyhole Cichlid and Pea Puffer together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Keyhole Cichlid and Pea Puffer?
74โ82ยฐF โ inside Keyhole Cichlid's 70โ82ยฐF and Pea Puffer's 74โ82ยฐF.
Is a Keyhole Cichlid aggressive toward a Pea Puffer?
Keyhole Cichlid is peaceful and Pea Puffer is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Keyhole Cichlid and Pea Puffer
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. |