Compatibility Overview
Discus and Senegal Bichir can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 100 gallons), dense planting, and close monitoring are essential.
| Factor | Discus | Senegal Bichir | Verdict |
|---|---|---|---|
| Temperature | 82–88°F | 72–82°F | ⚠️ 82–82°F (narrow) |
| pH Range | 5.0–7.0 | 6.5–7.5 | ⚠️ 6.5–7.0 (narrow) |
| Temperament | semi | aggressive | ❌ Risk |
| Adult Size | 8 in | 23.6 in | ⚠️ 3.0× difference |
| Min. Group | 5+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
Species Profiles
Discus — Symphysodon spp.
The 'king of the aquarium' — beautiful but demanding. Requires very warm, soft, acidic water that excludes most community fish.
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 Discus live with Senegal Bichir?
With significant caution and a larger tank. Discus and Senegal Bichir can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 100 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Discus and Senegal Bichir together?
A minimum of 100 gallons is recommended for keeping Discus and Senegal Bichir together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Discus and Senegal Bichir?
82–82°F (narrow)
Is a Discus aggressive toward a Senegal Bichir?
Discus is semi and Senegal Bichir is aggressive. Their preferred temperature ranges have little or no safe overlap.
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 | 0/100 |
| Ph | 50/100 |
| Temperament | 25/100 |
| Adult Size | 72/100 |
| 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 | 220 gal | Best when keeping larger schools or reducing territorial pressure. |