Olga cory
Corydoras simulatus
moderatepeacefulbottom swimmerCallichthyidae
- Tank length
- 22 cm9 in
- Group
- 6+
- Temperature
- 20–25 °C68–77 °F
- pH
- 6.2–6.4
- Adult size
- 5.5 cm2.2 in
- Lifespan
- 5–10 yrs
Keep in a group of six or more over soft sand so the barbels stay intact; they forage on sinking food, not leftovers alone.Keep in a group of six or more over soft sand so the barbels stay intact; they forage on sinking food, not leftovers alone.
Tank sizes
Good tankmates
None recorded.
Avoid with
- Acei cichlid
No shared pH rangeNo shared pH range
- Ajamaru rainbowfish
No shared pH rangeNo shared pH range
- American flagfish
No shared pH rangeNo shared pH range
- Angfa rainbowfish
No shared pH rangeNo shared pH range
- Arfak rainbowfish
No shared pH rangeNo shared pH range
Assassin snailNo shared pH rangeNo shared pH range
- Bandit cory
No shared pH rangeNo shared pH range
- Batanta rainbowfish
No shared pH rangeNo shared pH range
- Blood parrot cichlid
No shared pH rangeNo shared pH range
- Blue lyretail
No shared pH rangeNo shared pH range
- Blue rainbowfish
No shared pH rangeNo shared pH range
- Brevis shell dweller
No shared pH rangeNo shared pH range
Data used by the planner
| Temperature | 20–25 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
|---|---|---|
| pH | 6.2–6.4 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · low confidence |
| Hardness (dGH) | 1–10 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · low confidence |
| Origin | Rio Meta basin, Colombia | 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 | omnivore | curated-v0 (needs expert review) · medium confidence |
| Lifespan (years) | 5–10 | curated-v0 (needs expert review) · low confidence |
| Months to adult size | 12 | curated-v0 (needs expert review) · low confidence |
| Safe with plants | Yes | curated-v0 (needs expert review) · medium confidence |