Peacock bass
Cichla monoculus
- Tank length
- 300 cmabout 10 ft (118 in)
- Start with
- 1
- Temperature
- 25–28 °C77–82 °F
- pH
- 6–7.5
- Adult size
- 45 cm18 in
- Lifespan
- 10–15 yrs
A fast-growing piscivore that reaches monster size and eats any fish it can catch; only for huge display tanks.A fast-growing piscivore that reaches monster size and eats any fish it can catch; only for huge display tanks.
Tank sizes
Good tankmates
Avoid with
- Acei cichlid
No shared pH rangeNo shared pH range
- African butterfly cichlid
Peacock bass may eat African butterfly cichlidPeacock bass may eat African butterfly cichlid
- African clawed frog
No shared temperature rangeNo shared temperature range
- Agassiz's cory
Peacock bass may eat Agassiz's coryPeacock bass may eat Agassiz's cory
- Ajamaru rainbowfish
Peacock bass may eat Ajamaru rainbowfishPeacock bass may eat Ajamaru rainbowfish
Amano shrimpPeacock bass may eat Amano shrimpPeacock bass may eat Amano shrimp
- American flagfish
Peacock bass may eat American flagfishPeacock bass may eat American flagfish
- Angfa rainbowfish
Peacock bass may eat Angfa rainbowfishPeacock bass may eat Angfa rainbowfish
- Arfak rainbowfish
Peacock bass may eat Arfak rainbowfishPeacock bass may eat Arfak rainbowfish
Assassin snailPeacock bass may eat Assassin snailPeacock bass may eat Assassin snail
- Banded gourami
Peacock bass may eat Banded gouramiPeacock bass may eat Banded gourami
- Bandit cory
Peacock bass may eat Bandit coryPeacock bass may eat Bandit cory
Data used by the planner
| Temperature | 25–28 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04; agrees with FishBase (fishbase.se), retrieved 2026-10-04 · medium confidence |
|---|---|---|
| pH | 6–7.5 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · medium confidence |
| Hardness (dGH) | 3–12 | AqAdvisor (aqadvisor.com), retrieved 2026-10-04 · medium confidence |
| Origin | Amazon basin, South America | curated-v0 (needs expert review) · low confidence |
| Beginner friendly | No | curated-v0 (needs expert review) · medium confidence |
| Care level | advanced | 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 | predatory | 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 | Yes | 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 | carnivore | curated-v0 (needs expert review) · medium confidence |
| Lifespan (years) | 10–15 | curated-v0 (needs expert review) · low confidence |
| Months to adult size | 30 | curated-v0 (needs expert review) · low confidence |
| Safe with plants | No | curated-v0 (needs expert review) · medium confidence |
| Minimum tank length | 300 | curated-v0 (needs expert review) · medium confidence |