Can plecos live with otocinclus?
✅ Compatible Yes
- No conflicts found: temperature, pH, size, temperament and fin-nipping checks all pass.
| Bristlenose pleco | Otocinclus | |
| Temperature | 70–79 °F (21–26 °C) | 70–79 °F (21–26 °C) |
| pH | 5.5–7.5 | 5.5–7.5 |
| Adult size | 5.1 in (13 cm) | 1.6 in (4 cm) |
| Temperament | Peaceful | Peaceful |
| Swims in | Bottom | Bottom |
| Minimum tank | 20 gal | 10 gal |
Shared temperature: 70–79 °F (21–26 °C) · Shared pH: 5.5–7.5
Tips if you keep them together
- Keep otocinclus in a group of at least 6.
- Use a tank of at least 20 US gallons with plenty of plants and hiding places.
- Set the heater around 74 °F (23.5 °C), the middle of the shared range.
See all bristlenose pleco tank mates and otocinclus tank mates, or add more species in the checker.
FAQ
Can plecos live with otocinclus?
Yes. Plecos and otocinclus share water conditions and temperament.
What temperature for plecos and otocinclus?
Bristlenose pleco: 70–79 °F (21–26 °C). Otocinclus: 70–79 °F (21–26 °C). Shared range: 70–79 °F (21–26 °C).
What size tank for plecos and otocinclus?
At least 20 US gallons, more as you add fish.
Note: Compatibility depends on individual temperament, tank size, decor and how fish are introduced. Our verdicts use conservative rules applied to published care data (see methodology). They are guidance, not a guarantee. Quarantine new fish and watch for chasing, torn fins or hiding.