Golden otocinclus
Otocinclus affinis
- Tank length
- 14 cm6 in
- Group
- 6+
- Temperature
- 20–26 °C68–79 °F
- pH
- 6–8
- Adult size
- 3.5 cm1.4 in
- Lifespan
- 3–5 yrs
Grazes biofilm and soft algae in groups; add only to a mature planted tank and supplement with vegetables to prevent starvation.Grazes biofilm and soft algae in groups; add only to a mature planted tank and supplement with vegetables to prevent starvation.
Tank sizes
Good tankmates
Avoid with
- Irian Jaya rainbowfish
No shared temperature rangeNo shared temperature range
- African knifefish
African knifefish may eat Golden otocinclusAfrican knifefish may eat Golden otocinclus
- African pike
African pike may eat Golden otocinclusAfrican pike may eat Golden otocinclus
- Alligator gar
Alligator gar may eat Golden otocinclusAlligator gar may eat Golden otocinclus
- Altum angelfish
No shared temperature rangeNo shared temperature range
- Antenna ray
Antenna ray may eat Golden otocinclusAntenna ray may eat Golden otocinclus
- Arapaima
Arapaima may eat Golden otocinclusArapaima may eat Golden otocinclus
- Arrowhead puffer
Arrowhead puffer may eat Golden otocinclusArrowhead puffer may eat Golden otocinclus
- Asian arowana
Asian arowana may eat Golden otocinclusAsian arowana may eat Golden otocinclus
- Asian upside-down catfish
Asian upside down catfish may eat Golden otocinclusAsian upside down catfish may eat Golden otocinclus
- Australian pearl arowana
Australian pearl arowana may eat Golden otocinclusAustralian pearl arowana may eat Golden otocinclus
- Barred bichir
Barred bichir may eat Golden otocinclusBarred bichir may eat Golden otocinclus
Data used by the planner
| Temperature | 20–26 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
|---|---|---|
| pH | 6–8 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
| Hardness (dGH) | 5–19 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
| Origin | Coastal streams of southeastern Brazil | curated-v0 (needs expert review) · low confidence |
| Beginner friendly | No | curated-v0 (needs expert review) · medium confidence |
| Care level | moderate | curated-v0 (needs expert review) · medium confidence |
| Activity | moderate | curated-v0 (needs expert review) · medium confidence |
| Swimming level | bottom | curated-v0 (needs expert review) · medium confidence |
| Temperament | peaceful | curated-v0 (needs expert review) · medium confidence |
| Nips fins | No | curated-v0 (needs expert review) · medium confidence |
| Long fins | No | curated-v0 (needs expert review) · medium confidence |
| Territorial | No | curated-v0 (needs expert review) · medium confidence |
| Lives in groups | Yes | curated-v0 (needs expert review) · medium confidence |
| Minimum group | 6 | curated-v0 (needs expert review) · medium confidence |
| Diet | herbivore | curated-v0 (needs expert review) · medium confidence |
| Lifespan (years) | 3–5 | curated-v0 (needs expert review) · low confidence |
| Months to adult size | 6 | curated-v0 (needs expert review) · low confidence |
| Safe with plants | Yes | curated-v0 (needs expert review) · medium confidence |