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Upside-down catfish (Synodontis nigriventris)
AI illustration, not an ID reference

Upside-down catfish

Synodontis nigriventris

FishFreshwater

Care level
Easy
Temperament
Peaceful
Recommended tank
80 L
Maximum size
10 cm
Temperature
22–27 °C
pH
6–7.5
Group size
≥ 3
Diet
Omnivore

Care at a glance

The upside-down catfish from the Congo basin does exactly what its name promises: it swims inverted most of the time, often right under a leaf or an overhanging piece of wood. Its colouring matches that habit, because unlike almost every other fish its belly is darker than its back.

It is most active in the evening and at night and seeks shelter by day, so give it wood, caves and some floating plants. Keep it in a small group, as single fish stay virtually invisible.

Good to know

  • Active at night

Related species

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.