Compatibility Overview
Keyhole Cichlid and Senegal Bichir are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
| Factor | Keyhole Cichlid | Senegal Bichir | Verdict |
|---|---|---|---|
| Temperature | 72–79°F | 72–82°F | ✅ 72–79°F |
| pH Range | 7.0–8.0 | 6.5–7.5 | ⚠️ 7.0–7.5 (narrow) |
| Temperament | semi | aggressive | ❌ Risk |
| Adult Size | 2.0 in | 23.6 in | ❌ 12× difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
Species Profiles
Keyhole Cichlid — Aquarium species
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. With proper care, they can live for sev
→ Full Keyhole Cichlid care guide
Senegal Bichir — Aquarium species
The Senegal Bichir is a fascinating freshwater fish known for its eel-like body and bony plates. It is a peaceful community fish that can be kept with a variety of species. These fish are active and require a spacious tank with plenty of swimming room. They are not known to be aggressive and can be a great addition to a beginner's aquarium.
Frequently Asked Questions
Can Keyhole Cichlid live with Senegal Bichir?
Generally not recommended. Keyhole Cichlid and Senegal Bichir are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
What tank size do I need for Keyhole Cichlid and Senegal Bichir together?
A minimum of 100 gallons is recommended for keeping Keyhole Cichlid and Senegal Bichir together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Keyhole Cichlid and Senegal Bichir?
72–79°F
Is a Keyhole Cichlid aggressive toward a Senegal Bichir?
Keyhole Cichlid is semi and Senegal Bichir is aggressive. The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Compatibility score breakdown
The overall score is weighted across water chemistry, behavior, adult size, swimming zone, and social needs. A score is a planning aid—not a guarantee for individual fish.
| Factor | Score |
|---|---|
| Temperature | 100/100 |
| Ph | 50/100 |
| Temperament | 25/100 |
| Adult Size | 8/100 |
| Swim Zone | 68/100 |
| Social Needs | 92/100 |
Tank size scenarios
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 100 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 150 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 180 gal | Best when keeping larger schools or reducing territorial pressure. |