Blue tetra
Boehlkea fredcochui
- Tank length
- 27 cm11 in
- Group
- 8+
- Temperature
- 24–27 °C75–81 °F
- pH
- 5.5–7.5
- Adult size
- 4.5 cm1.8 in
- Lifespan
- 3–5 yrs
An active shoaler that nips long fins if kept in small numbers; keep a large group away from bettas and angels.An active shoaler that nips long fins if kept in small numbers; keep a large group away from bettas and angels.
Tank sizes
Good tankmates
Avoid with
- Acei cichlid
No shared pH rangeNo shared pH range
- Blue lyretail
Blue tetra may nip Blue lyretailBlue tetra may nip Blue lyretail
- Brevis shell dweller
No shared pH rangeNo shared pH range
- Caudopunctatus
No shared pH rangeNo shared pH range
Congo tetraBlue tetra may nip Congo tetraBlue tetra may nip Congo tetra
- Featherfin squeaker
Blue tetra may nip Featherfin squeakerBlue tetra may nip Featherfin squeaker
- Filament barb
Blue tetra may nip Filament barbBlue tetra may nip Filament barb
- Guppy
Blue tetra may nip GuppyBlue tetra may nip Guppy
- Multies
No shared pH rangeNo shared pH range
Pearl gouramiBlue tetra may nip Pearl gouramiBlue tetra may nip Pearl gourami
- Pindani
No shared pH rangeNo shared pH range
- Rusty cichlid
No shared pH rangeNo shared pH range
Data used by the planner
| Temperature | 24–27 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
|---|---|---|
| pH | 5.5–7.5 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
| Hardness (dGH) | 1–15 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · low confidence |
| Origin | Upper Amazon, Peru and 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 | active | curated-v0 (needs expert review) · medium confidence |
| Swimming level | middle | curated-v0 (needs expert review) · medium confidence |
| Temperament | peaceful | curated-v0 (needs expert review) · medium confidence |
| Nips fins | Yes | 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 | 8 | curated-v0 (needs expert review) · medium confidence |
| Diet | omnivore | 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 |