Dusky millions fish
Phalloceros caudimaculatus
- Tank length
- 12 cm5 in
- Start with
- 3
- Temperature
- 20–24 °C68–75 °F
- pH
- 7–8
- Adult size
- 3 cm1 in
- Lifespan
- 2–3 yrs
A subtropical livebearer that handles cooler rooms; keep more females than males and expect steady breeding.A subtropical livebearer that handles cooler rooms; keep more females than males and expect steady breeding.
Tank sizes
Good tankmates
Avoid with
- African clawed frog
African clawed frog may eat Dusky millions fishAfrican clawed frog may eat Dusky millions fish
- Black kuhli loach
No shared temperature rangeNo shared temperature range
Boeseman rainbowfishNo shared temperature rangeNo shared temperature range
- Brilliant rasbora
No shared pH rangeNo shared pH range
- Irian Jaya rainbowfish
No shared temperature rangeNo shared temperature range
- Julii cory
No shared temperature rangeNo shared temperature range
Lambchop rasboraNo shared pH rangeNo shared pH range
- Parkinson's rainbowfish
No shared temperature rangeNo shared temperature range
- Rusty cichlid
No shared temperature rangeNo shared temperature range
- Abei puffer
Abei puffer may eat Dusky millions fishAbei puffer may eat Dusky millions fish
- Afra cichlid
No shared temperature rangeNo shared temperature range
- African butterflyfish
African butterflyfish may eat Dusky millions fishAfrican butterflyfish may eat Dusky millions fish
Data used by the planner
| Temperature | 20–24 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
|---|---|---|
| pH | 7–8 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
| Hardness (dGH) | 9–19 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
| Origin | Southeastern Brazil, Uruguay, Paraguay and Argentina | curated-v0 (needs expert review) · low confidence |
| Beginner friendly | Yes | curated-v0 (needs expert review) · medium confidence |
| Care level | easy | curated-v0 (needs expert review) · medium confidence |
| Activity | moderate | 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 | 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 | No | curated-v0 (needs expert review) · medium confidence |
| Minimum group | 1 | curated-v0 (needs expert review) · medium confidence |
| Diet | omnivore | curated-v0 (needs expert review) · medium confidence |
| Lifespan (years) | 2–3 | curated-v0 (needs expert review) · low confidence |
| Months to adult size | 4 | curated-v0 (needs expert review) · low confidence |
| Safe with plants | Yes | curated-v0 (needs expert review) · medium confidence |