News
SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliamentSpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliament
EveryFish
Giant cichlid, also known as the Emperor cichlid ( Boulengerochromis microlepis ) is an African species of cichlid endemic to Lake Tanganyika

Giant cichlid

The largest living cichlid species, native to Lake Tanganyika in Africa.

Photo: George Albert Boulenger, Public domain, via Wikimedia Commons

This massive freshwater fish is the sole member of its genus and tribe. It inhabits Lake Tanganyika, where adults hunt other fish while juveniles feed on varied matter in shallower waters.

Share on WhatsApp

  • Largest extant cichlid species, reaching 90 cm.
  • Endemic to Lake Tanganyika in Africa.
  • Adults eat fish; juveniles eat various foods.
  • Only member of genus Boulengerochromis.
  • Rarely kept in aquariums due to huge size.

What it is

The giant cichlid stands as the largest known living species within the cichlid family. Males can grow to ninety centimetres, while females reach seventy-five centimetres. This size rivals that of the speckled peacock bass from South America. The fish belongs exclusively to the genus Boulengerochromis and its own tribe. Its body shape supports a life in open water, with fins adapted for swimming in groups. The colouration helps it blend into the lake environment. It remains the only species in its specific taxonomic group.

Where it lives

This fish lives only in Lake Tanganyika, located in central Africa. The lake spans four nations: Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. Within these borders, the species is relatively common. It prefers coastal zones rather than deep open water. Individuals have been recorded at depths reaching one hundred metres. The habitat varies by age, with younger fish staying closer to shore. Adults often move further out into deeper sections of the lake.

How it lives

Diet changes significantly as the fish matures. Juveniles eat a wide variety of food sources in shallow, rocky areas. These shallows provide cover from predators. Adults switch to eating other fish, becoming primarily piscivorous. They form small groups to hunt in open water, except when breeding. This schooling behaviour aids in finding prey. The shift from omnivore to predator marks their transition to adulthood. Predators likely target the smaller, vulnerable juveniles in the rocks.

Breeding and life cycle

Specific details about spawning habits are not provided in the available records. Adults leave their hunting groups temporarily to reproduce. The process involves pairing off or gathering in specific areas. Young fish require sheltered environments to survive early growth stages. The protective rock-strewn waters serve this purpose for juveniles. Once they mature, they join adult groups in deeper zones. The timing and exact methods of reproduction remain undocumented here.

Giant cichlid
A drawing made by EveryFish from what this page says. It is a diagram, not a picture of the real fish.

Fish and people

Local communities may consume this fish as a food source. Its large size makes it a significant catch. Aquarium enthusiasts sometimes seek them out, but they are difficult to keep. Their enormous adult dimensions restrict them to very large public or private tanks. Most home aquaria cannot accommodate such a massive creature. Consequently, they are rarely seen in typical household settings. Their presence in the trade is limited by space requirements alone.

Status and threats

The species is considered least concern by conservation standards. The population appears stable across its range in Lake Tanganyika. Protection measures are not detailed in the provided information. The fish remains common in its native coastal and deeper waters. Continued monitoring ensures its status remains secure.

Questions people ask about Giant cichlid

How big does the giant cichlid get?

Males reach up to ninety centimetres in length. Females grow slightly smaller, reaching seventy-five centimetres. This makes them the largest living species in the cichlid family.

Where is the giant cichlid found?

It lives only in Lake Tanganyika in central Africa. The lake borders Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. It is endemic to this single large lake system.

What do giant cichlids eat?

Juveniles are omnivores feeding in shallow rocky areas. Adults become piscivorous, meaning they eat other fish. They hunt in small groups in open water away from the shore.

Can I keep a giant cichlid in my tank?

They are occasionally sold but are ill-suited for most homes. Their enormous adult size requires very large public or private aquariums. Standard home tanks cannot accommodate such a massive fish.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Giant cichlid", 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.

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

The weekly digest

Every Monday: the fish of the day, new pages on EveryFish, and the conferences and anniversaries of the week ahead.