Red eye tetra
Moenkhausia sanctaefilomenae
- Adult size
- 5 cm2 in
- Group
- 6+
- Tank length
- 30 cm12 in
- Lifespan
- 5–8 yrs
- Temperature
- 22–26 °C72–79 °F
- pH
- 5.5–7.5
- Hardness
- 1–15 dGH
- Diet
- omnivore
Hardy and adaptable, but small groups may nip long fins; keep at least six away from bettas and fancy guppies.Hardy and adaptable, but small groups may nip long fins; keep at least six away from bettas and fancy guppies.
Tank sizes
Good tankmates
Avoid with
- Acei cichlid
No shared pH rangeNo shared pH range
- Blue lyretail
Red eye tetra may nip Blue lyretailRed eye tetra may nip Blue lyretail
- Brevis shell dweller
No shared pH rangeNo shared pH range
- Caudopunctatus
No shared pH rangeNo shared pH range
Congo tetraRed eye tetra may nip Congo tetraRed eye tetra may nip Congo tetra
- Featherfin squeaker
Red eye tetra may nip Featherfin squeakerRed eye tetra may nip Featherfin squeaker
- Filament barb
Red eye tetra may nip Filament barbRed eye tetra may nip Filament barb
- Guppy
Red eye tetra may nip GuppyRed eye tetra may nip Guppy
- Irian Jaya rainbowfish
No shared temperature rangeNo shared temperature range
- Multies
No shared pH rangeNo shared pH range
Pearl gouramiRed eye tetra may nip Pearl gouramiRed eye tetra may nip Pearl gourami
- Pindani
No shared pH rangeNo shared pH range
Sources
| temperature | 22–26 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium |
|---|---|---|
| ph | 5.5–7.5 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium |
| gh | 1–15 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · low |
| origin | Paraguay and Parana river basins, South America | curated-v0 (needs expert review) · low |
| notes | Hardy and adaptable, but small groups may nip long fins; keep at least six away | curated-v0 (needs expert review) · medium |
| beginner friendly | true | curated-v0 (needs expert review) · medium |
| care level | easy | curated-v0 (needs expert review) · medium |
| color palette | #D0D4D8, #2A2A2A, #E0C040 | curated-v0 (needs expert review) · low |
| activity | active | curated-v0 (needs expert review) · medium |
| swim zone | middle | curated-v0 (needs expert review) · medium |
| temperament | peaceful | curated-v0 (needs expert review) · medium |
| fin nipper | true | curated-v0 (needs expert review) · low |
| long finned | false | curated-v0 (needs expert review) · medium |
| territorial | false | curated-v0 (needs expert review) · medium |
| schooling | true | curated-v0 (needs expert review) · medium |
| schooling min | 6 | curated-v0 (needs expert review) · medium |
| diet | omnivore | curated-v0 (needs expert review) · medium |
| lifespan years | 5–8 | curated-v0 (needs expert review) · low |
| growth to adult months | 9 | curated-v0 (needs expert review) · low |
| length weight | {"a":0.018,"b":3} | curated-v0 (needs expert review) · low |
| planted safe | true | curated-v0 (needs expert review) · medium |
| body shape | tetra | curated-v0 (needs expert review) · medium |