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EveryFish
Red Devil

Red devil cichlid

Large aggressive cichlid from Central American lakes

Photo: J. Jury, Public domain, via Wikimedia Commons

The red devil cichlid is a large fish native to Lake Managua and Lake Nicaragua. It displays variable colouration and enlarged lips in the wild. Known for aggression and sharp teeth, it requires careful handling in captivity. Introduced populations have become invasive in Indonesian lakes.

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  • Native to Lake Managua and Lake Nicaragua
  • Enlarged lips often disappear in captivity
  • Highly aggressive with razor sharp teeth
  • Invasive in Indonesian lakes like Toba
  • Forms monogamous pairs for spawning

What it is

This large cichlid is endemic to two lakes in Central America. Wild specimens show variable colours ranging from grey to green. Some individuals display pink, red or white hues. Black spots or bands are common features. A distinctive trait is the presence of enlarged lips in some fish. This physical characteristic often disappears when the fish are kept in captivity. The shape and size suggest a robust body typical of large cichlids.

Where it lives

The species is native to Lake Managua and Lake Nicaragua. These freshwater bodies provide its natural habitat. Outside this native range, the fish has been introduced to other regions. It was brought to Indonesia as an ornamental aquarium pet. Released populations have established themselves in the wild there. It is now considered invasive in several Indonesian lakes. Specific locations include Lake Toba and waters in Java, Sulawesi and Papua.

How it lives

Aquarists describe this fish as highly aggressive. It possesses razor sharp teeth and powerful jaws. Owners must choose tank mates with extreme care. The fish may ram into glass to attack perceived invaders. It can break heaters and other equipment within the tank. There are reports of the fish biting its owners. In the wild, diet preferences influence physical traits such as lip size. Advanced brood care is typical for this group of fish.

Breeding and life cycle

These fish form monogamous pairs for reproduction. They exhibit advanced brood care behaviours. Spawning takes place on flattened surfaces. Suitable sites include rocks or submerged logs. The parents guard the eggs and young fry. This protective behaviour is common among cichlids. The pairing bond supports the rearing of offspring in their natural environment.

Red devil 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

The aquarium trade sells this species under the name red devil. This label causes confusion with the Midas cichlid. The latter is yellow and scientifically distinct. Hobbyists value the fish but warn of its temper. It requires a large tank due to its size and nature. In Indonesia, release from home tanks has caused ecological issues. The species threatens native biodiversity in invaded lakes.

Status and threats

The fish is invasive in parts of Indonesia. It poses a threat to other species in Lake Toba. Populations have spread to lakes in Java, Sulawesi and Papua. Management efforts focus on controlling its spread in non-native waters where it disrupts local ecosystems.

Questions people ask about Red devil cichlid

Why do some red devils have large lips?

Enlarged lips in wild specimens are linked to specific food choices in their natural habitat. This physical trait is not permanent and typically disappears when the fish are kept in captivity with different diets.

Is the red devil cichlid safe for community tanks?

No, they are regarded as highly aggressive. They have sharp teeth and powerful jaws that can harm tank mates. They may also damage equipment and bite owners, requiring careful isolation or very large tanks.

Where is this fish considered invasive?

It is an invasive species in Indonesia. After being released from aquariums, it established populations in Lake Toba. It also threatens native species in lakes across Java, Sulawesi and Papua.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Amphilophus labiatus", 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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Photo credits on this page

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

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