Cichla ocellaris
Peacock Bass
Last revised 2026Edit this page
On this page11 sections
Quick factsEdit
Difficulty5 of 8 measures
Rated difficult because it needs a tank at least 2 m long.
- Space
- very large tank
- Water
- needs a steady pH
- Temp
- needs a steady temperature
- Diet
- unknown
- Temperament
- territorial
- Social
- unknown
- Compatibility
- unknown
Other demands
Each of these can raise the rating on its own, whatever the measures above say.
- Hardiness
- hardy
- Needs a tank at least 2 m long
The peacock bass, Cichla ocellaris, is a large predatory cichlid native to Colombia, Venezuela, Guyana, Suriname, French Guiana and Brazil. Introduced populations exist in several countries, including Singapore and the USA. Often sold as small juveniles, it grows to around 75 cm and needs a tank of at least 10 x 3 x 4 feet as an adult, and it will eat any tankmate small enough to be considered food.
Distribution
EditNative to northern South America in Guyana, Suriname, French Guiana and Brazil. Introduced populations exist in various countries, including Singapore and the USA.
Habitat
Write a noteEditNative to northern South America in Guyana, Suriname, French Guiana and Brazil. Introduced populations exist in various countries, including Singapore and the USA.
Aquarium size
Write a noteEditMore suited to public aquaria, otherwise a very large tank required. Ultimately, this fish will require a tank of at least 10'x3'x4' (l x h x w) for an adult fish. Smaller aquaria can be used for younger specimens but realistically you should not acquire this fish if you cannot house it long term.
Maintenance
Write a noteEditWater conditions
EditTemperature: 24 – 27 °C75 – 81 °F
pH: 6.5 - 7.0
Hardness: Up to 15°H
Diet
Write a noteEditPiscivorous in nature. The diet should consist of meaty foods such as prawn, mussel, lancefish, whitebait and other white fish.
Behaviour and compatibility
Write a noteEditTerritorial and moderately aggressive. Can be kept in species groups or with other large species such as arowana, stingrays, large cats and other large cichlids. An extremely large tank is required to achieve this with any degree of success.
Will eat tankmates small enough to be considered food.
Sexual dimorphism
Write a noteEditThe male is larger and develops a nuchal hump as he matures.
Reproduction
Write a noteEditLimited reports of breeding in the hobby.
Notes
EditDue to their large size, Peacock Bass are only really recommended for the experienced fishkeeper that can house them adequately. That said, they are a hardy and robust species that will adapt to a variety of conditions.
Peacock Bass are becoming much more available in the hobby and are often seen for sale as cute 2" babies, often tempting people into buying a fish they will not be able to care for in the long term.
Peacock Bass are also fished as a sport fish.
Species images · 1
These photographs are used with each photographer's permission.
Send a photographDistribution
- Brazil
- French Guiana
- Guyana
- Singaporeintroduced
- Suriname
- United Statesintroduced
Profile completeness18 of 24
75% complete
Also missing: aquarium size, taxonomic authority, etymology.
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