Angelfish and Senegal Bichir Compatibility Overview
Short answer: No. The adult size gap creates a meaningful predation risk. Keep them in separate tanks, or pick one of the safer tank mates listed below.
Angelfish and Senegal Bichir are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Both are semi, so give them a larger, well-planted tank and watch how they settle in. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Angelfish | Senegal Bichir | Verdict |
|---|---|---|---|
| Temperature | 74–84°F | 75–82°F | ✅ 75–82°F |
| pH Range | 6.0–7.5 | 6.2–7.8 | ✅ 6.2–7.5 |
| Temperament | semi | semi | ⚠️ Monitor |
| Adult Size | 6 in | 19.7 in | ⚠️ 3.3× difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Angelfish — Pterophyllum scalare
Elegant South American cichlids with long flowing fins. Generally peaceful but territorial when breeding and will eat very small fish.
Senegal Bichir — Polypterus senegalus
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 Angelfish live with Senegal Bichir?
Generally not recommended. Angelfish and Senegal Bichir are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Both are semi, so give them a larger, well-planted tank and watch how they settle in. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Angelfish and Senegal Bichir together?
A minimum of 100 gallons is recommended for keeping Angelfish and Senegal Bichir together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Senegal Bichir?
75–82°F — inside Angelfish's 74–84°F and Senegal Bichir's 75–82°F.
Is a Angelfish aggressive toward a Senegal Bichir?
The adult size gap creates a meaningful predation risk.
Safer Tank Mates for Angelfish and Senegal Bichir
The highest-scoring compatible partners for each species in our compatibility data.
For Angelfish
- Silver Dollar — 90/100
- African Butterfly Fish — 89/100
- Bolivian Ram — 89/100
- Congo Tetra — 88/100
- Moonlight Gourami — 88/100
For Senegal Bichir
- Black Ghost Knifefish — 87/100
- Clown Loach — 82/100
- Severum Cichlid — 82/100
- Fire Eel — 78/100
Related Compatibility Guides
Tank Size for Angelfish and Senegal Bichir
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 143 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 220 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 300 gal | Best when keeping larger schools or reducing territorial pressure. |