Animals A-Z
Ripsaw Catfish
Scientific Name : Oxydoras niger
Status : Not Evaluated (IUCN)
On view at Aquarium in : Amazon Waterfall
The ripsaw catfish, also known as the Niger catfish or black doradid, is a large, armored freshwater fish native to the river systems of South America. Its name comes from the serrated spines along its sides, which resemble a saw blade. Known for its peaceful nature and impressive size, this species is a popular choice for large aquariums. Doradids, including the ripsaw catfish, are sometimes called “talking catfish” due to the audible noises they produce, which sound like they’re communicating with one another.

Quick Facts
Did You Know?
- Armoured Defence: The ripsaw catfish’s body is covered in bony scutes along its lateral line. These serrated, armour-like plates protect it from predators, making it well-defended in the wild.
- Talking’ Catfish: Doradids, including the ripsaw catfish, are sometimes called “talking catfish” because they can produce audible sounds. These noises, often heard as grunts or clicks, may be used for communication or to ward off predators.
- Specialized Mouth: The ripsaw catfish, like many catfish species, has a wide, downward-facing mouth perfectly designed for bottom-feeding. This shape, along with its sensitive barbels (whisker-like structures), allows it to easily search for food along the riverbed, detecting and scooping up detritus, small invertebrates, and plant matter hidden in the substrate.
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