The Orinoco Peacock Bass (Cichla orinocensis) is a spectacular large predatory cichlid native to the Orinoco and Rio Negro river systems of South America.
Known for its powerful build, incredible feeding response, golden-green coloration, and three distinctive dark ocellated spots along each side of the body, the Orinoco Peacock Bass is one of the most impressive freshwater predators available to experienced aquarists.
Juveniles may initially appear manageable in a typical aquarium, but this species can grow to approximately 2 feet or more, requiring an exceptionally large permanent aquarium, powerful filtration, and carefully selected tankmates.
For the properly equipped monster-fish keeper, Cichla orinocensis can become an incredible centerpiece fish with impressive size, personality, and presence.
The Orinoco Peacock Bass is one of the most recognizable members of the genus Cichla.
Adult coloration may include:
The most distinctive feature of Cichla orinocensis is the presence of three large, dark, rounded ocellated spots along each side of the body.
These prominent markings help distinguish it from many other Peacock Bass species.
The tail also displays the characteristic peacock-like eyespot associated with the genus.
Coloration can become much more intense according to:
Well-conditioned adults can become exceptionally impressive display fish.
The Orinoco Peacock Bass is a large cichlid.
Scientifically documented specimens have reached approximately:
61.7 cm standard length
That equals approximately:
24.3 inches excluding the tail fin
Because standard length does not include the caudal fin, aquarists should plan for a fish reaching roughly 2 feet or potentially more in total length.
Juvenile Peacock Bass grow quickly when maintained under proper conditions.
A 3-inch or 4-inch juvenile may look small enough for a normal aquarium, but the permanent aquarium must be planned around the size of the adult fish, not the size being purchased today.
Adult Orinoco Peacock Bass require an exceptionally large aquarium.
For long-term care, we recommend approximately:
350 gallons or larger
Larger custom aquariums are strongly preferred, particularly when keeping:
Aquarium dimensions are just as important as total gallon volume.
The aquarium must provide enough:
A tall but narrow aquarium is not an appropriate permanent home for an adult Peacock Bass.
The Orinoco Peacock Bass requires plenty of open swimming space.
Recommended aquarium features include:
Avoid filling the aquarium with excessive decorations that reduce swimming space.
Large driftwood and rock structures can be used around the edges or rear of the aquarium to create structure while leaving the majority of the tank open.
Large Peacock Bass produce a substantial amount of waste.
They:
Strong filtration is essential.
Recommended filtration may include:
The aquarium must be fully cycled before introducing the fish.
Maintain:
Regular large water changes are strongly recommended.
Recommended aquarium conditions:
Wild populations naturally occur in warm tropical South American freshwater environments.
Stable conditions and excellent water quality are more important than continuously adjusting the aquarium to reach one exact pH value.
Avoid sudden changes in:
The Orinoco Peacock Bass is a carnivorous predator.
In nature, Peacock Bass feed heavily on smaller fish and other aquatic prey.
In captivity, they can often be trained to accept a variety of frozen and prepared foods.
Recommended foods include:
Juveniles may also accept:
A varied diet is strongly recommended.
We do not recommend routinely feeding live feeder fish.
Feeder fish can introduce:
Peacock Bass can generally be conditioned to accept frozen, fresh, and quality prepared foods.
A varied non-live diet is safer and easier to control nutritionally.
The Orinoco Peacock Bass is a large predatory cichlid.
It should never be considered a normal community fish.
Anything small enough to fit into its mouth may eventually become food.
Peacock Bass are also powerful feeders and may dominate slower or timid fish during feeding.
Individual temperament can vary.
Some specimens may coexist with appropriately sized tankmates, while others may become increasingly territorial as they mature.
Tankmates must be selected carefully.
Potential tankmates in an appropriately sized aquarium may include:
Avoid:
A tankmate that is safe with a juvenile Peacock Bass may become prey once the Peacock Bass grows.
Always consider the future size relationship between the fish.
Peacock Bass are sometimes maintained in groups, especially while young.
A group can help distribute aggression, but this requires an aquarium substantially larger than what would be appropriate for a single adult.
As they mature:
Always provide enough room to separate fish if compatibility problems develop.
Orinoco Peacock Bass are substrate-spawning cichlids.
A compatible pair may select and clean a flat spawning surface before reproduction.
Potential spawning sites can include:
After spawning, both parents may participate in defending:
Breeding adults can become significantly more aggressive.
Because of their enormous adult size, breeding Cichla orinocensis requires an exceptionally large aquarium or indoor pond-style system.
Juvenile Peacock Bass can grow rapidly when provided with:
Never delay upgrading the aquarium until the fish has already outgrown its current enclosure.
A long-term housing plan should be established before purchasing the fish.
The Orinoco Peacock Bass is an outstanding choice for experienced monster-fish keepers who have the space and equipment required for a truly large predatory cichlid.
Its combination of:
makes Cichla orinocensis one of the most impressive large freshwater cichlids in the hobby.
Before purchasing an Orinoco Peacock Bass:
This species is best suited for experienced aquarists with large custom aquariums or monster-fish systems.
Live fish are professionally packed for safe transport.
Shipping availability depends on:
Larger specimens may require specialized shipping or airline cargo because of their size and packing requirements.
Please review our Shipping & Payment Information and Live Arrival Guarantee / DOA Policy before ordering.
Customers are responsible for confirming that this species may legally be purchased, possessed, transported, and received in their state or local jurisdiction before ordering.
Peacock Bass and other large predatory nonnative fish may be regulated in certain jurisdictions.
Never release aquarium fish into local waterways.

















