Can Otocinclus Live With Severum?
Otocinclus and Severum are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 75–79°F.
pH
✓ Compatible
Good pH overlap at 6.0–7.5.
Size
✗ Not Compatible
Extreme size difference. Severum (8") may eat or bully Otocinclus (1.5").
Temperament
⚠ Use Caution
Otocinclus (peaceful) may have issues with Severum (semi-aggressive). Monitor closely if attempting.
Swim Level
✓ Compatible
Fish occupy different water levels (Otocinclus: bottom, Severum: middle), reducing conflict.
Important Notes
- Otocinclus is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | Otocinclus | Severum |
|---|---|---|
| Temperature | 72–79°F | 75–84°F |
| pH | 6–7.5 | 6–7.5 |
| Max Size | 1.5" | 8" |
| Temperament | Peaceful | Semi-aggressive |
| Swim Level | Bottom | Middle |
| Min Tank | 10 gal | 55 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.