Speckled peacock bass
A large South American cichlid prized for sport and food.
The speckled peacock bass is a massive freshwater fish native to the Orinoco and Amazon basins. It holds the title of largest cichlid in the Americas and is sought after by anglers and local communities alike.
- Largest cichlid in the Americas at 99 cm.
- Colour changes from speckled to barred during breeding.
- Parents guard fry for two months without mouthbrooding.
- Introduced successfully to Singapore and Malaysia.
- Hunts diurnally in blackwater rivers and lagoons.
What it is
This species stands as the largest cichlid found in the Americas. Adults can reach nearly one metre in length and weigh over twelve kilograms. The body shape is elongate and slender compared to other peacock bass. A key identifier is the dark band between the eye and gill opening, which distinguishes it from relatives with blotches. Colour patterns shift dramatically with the seasons. Non-breeding fish display dark olive skin covered in light speckles. Breeding adults turn golden-olive with bold dark bars and bright ventral areas. Males may grow a nuchal hump during this period.
Where it lives
Native waters include the Orinoco and Rio Negro basins. It also inhabits smaller tributaries like the Uatumã and Tefé in Brazil. The range extends through Colombia, Venezuela, and Guyana. These fish prefer blackwater rivers with sandy or rocky shores. They are often found near lagoons and main channel edges. Attempts to introduce them to Florida and Texas failed due to cold temperatures. However, populations thrive in tropical Singapore and Malaysia.
How it lives
They hunt during daylight hours, primarily between nine AM and three PM. As ambush predators, they use dappled light and tannin-stained water for cover. Schools may form feeding frenzies when prey appears. Diet varies by size and location but includes tetras, anchovies, catfish, and even smaller peacock bass. Cannibalism occurs in isolated dry-season pools. Natural predators include river dolphins, caimans, otters, and piranhas. Parasites such as crustaceans and trematodes infect them.
Breeding and life cycle
Spawning begins at the end of the dry season. Pairs clear rocks or tree roots to lay eggs. Females produce thousands of eggs depending on their mass. Parents guard the brood fiercely without mouthbrooding. Fry hatch in two days and swim freely shortly after. Guardians protect them for two months until they disperse. Juveniles eat shrimp and insects before joining shoals. Hybridization with Cichla monoculus occurs naturally in some areas.
Fish and people
Locally, this fish supports significant inland fisheries. It is a top target for sports anglers due to its powerful fight. Fly fishing techniques work well in low-current areas. The species is also kept in large home aquariums requiring strong filtration. Introduction efforts outside South America have had mixed results. Dams have altered genetic structures and boosted upstream populations. Research into stock management continues.
Questions people ask about Speckled peacock bass
What makes the speckled peacock bass unique in appearance?
Its colour pattern shifts seasonally. Non-breeding fish show dark olive skin with light speckles. Breeding adults lose speckles, gaining golden-olive scales with dark bars and bright bellies. Males may develop a forehead hump during mating.
Where does this fish live naturally?
It originates in the Orinoco and Rio Negro basins. It also lives in central Amazon tributaries across Brazil, Colombia, Venezuela, and Guyana. It prefers blackwater rivers with sandy or rocky banks near lagoons.
Is it safe to keep in a home aquarium?
Yes, but it requires a very large tank with ample swimming space. A tight lid prevents escapes. Strong filtration is essential to remove ammonia and nitrites. Water temperature should stay between twenty-one and twenty-seven degrees Celsius.
How do they care for their young?
Pairs prepare nesting sites on rocks or wood. Both parents guard the eggs and hatched fry vigorously. They fast while protecting the brood for about two months. After dispersal, juveniles feed on small invertebrates.
Good reading and sources
- Cichla temensis on WikipediaEncyclopedia
- More photos on Wikimedia CommonsPhotos
- Wikidata recordOpen data
The facts on this page come from the Wikipedia article "Cichla temensis", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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