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EveryFish
13 inch fahaka puffer fish.

Fahaka pufferfish

Large tropical freshwater puffer from African river basins.

Photo: Earedien, Public domain, via Wikimedia Commons

The fahaka pufferfish is a large tropical species native to major river systems in West, Northeast and East Africa. It feeds on snails and mussels, carries toxins, and can inflate its body when threatened.

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  • Grows up to 43 cm in length
  • Contains potent tetrodotoxin poison
  • Feeds on snails and freshwater mussels
  • Spawns between April and August
  • Found in West and East African rivers

What it is

This tropical freshwater fish belongs to the puffer family. It grows up to 43 centimetres long. Like other members of its group, it can inflate its body into a sphere when it feels danger. The skin contains tetrodotoxin, a potent poison that deters predators. Its common name comes from the Arabic word for puffer. The scientific name is Tetraodon lineatus.

Where it lives

The species lives in several major river basins across Africa. Populations exist in the upper Nile and Turkana systems in the northeast and east. In the west, it inhabits the Chad, Senegal, Gambia, Geba and Volta basins. These fish prefer large rivers with open water. They also stay near weed beds and vegetated edges where food is plentiful.

How it lives

Fahaka puffers are molluscivores, meaning they eat hard-shelled prey. Their diet consists mainly of benthic organisms found on the river bottom. Freshwater mussels and snails make up most of their meals. In the River Nile, individuals live for about five years on average. They navigate through open channels and hide among plants.

Breeding and life cycle

Research indicates a specific reproductive window for this species. Studies by AbouelFadl and Farrag tracked the gonadosomatic index, which measures reproductive organ size relative to body weight. This index rises steadily from April through August. Scientists interpret this increase as evidence that spawning occurs during these months.

Fahaka pufferfish
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 fish carries tetrodotoxin, making it dangerous to eat if not prepared correctly. This toxin is a natural defence mechanism. Its ability to inflate makes it a notable subject for observation.

Globe fish, Tetraodon lineatus Linnaeus, 1758, Natural History Museum University of Pisa
Globe fish, Tetraodon lineatus Linnaeus, 1758, Natural History Museum University of Pisa. Photo: Mattia Nocciola, CC BY-SA 4.0, via Wikimedia Commons
Fahaka Puffer ( Tetraodon lineatus ) in Ethiopia
Fahaka Puffer ( Tetraodon lineatus ) in Ethiopia. Photo: John P Friel, CC BY 4.0, via Wikimedia Commons
Fahaka Puffer ( Tetraodon lineatus ) in Ethiopia
Fahaka Puffer ( Tetraodon lineatus ) in Ethiopia. Photo: John P Friel, CC BY 4.0, via Wikimedia Commons
Please like my page on facebook to support my efforts with wildlife photography www.facebook.com/photographybycolby
Please like my page on facebook to support my efforts with wildlife photography www.facebook.com/photographybycolby. Photo: Colby Stopa, CC BY 2.0, via Wikimedia Commons

Questions people ask about Fahaka pufferfish

How big does the fahaka pufferfish get?

Adults can reach a maximum length of 43 centimetres, which is about 1.4 feet. This makes it one of the larger freshwater puffer species.

Is the fahaka pufferfish poisonous?

Yes, it carries tetrodotoxin. This is a strong toxin found in many pufferfish that serves as a defence against predators. It makes the fish dangerous to consume without proper preparation.

What does the fahaka pufferfish eat?

It is a molluscivore that feeds on benthic organisms. Its primary diet includes freshwater mussels and snails found on the riverbed.

Where does the fahaka pufferfish live?

It inhabits tropical freshwater systems in Africa. Specific ranges include the upper Nile, Chad, Senegal, Gambia, Geba, Volta and Turkana basins.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Fahaka pufferfish", 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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