Definition of upside-down catfish in English:

upside-down catfish

Line breaks: upside-down cat|fish

noun

  • A small freshwater catfish that habitually swims upside down so as to browse on algae on the undersides of floating leaves. Native to central Congo, it is popular in aquaria.
    • Synodontis nigriventris, family Mochokidae
    More example sentences
    • This fish is seen far less often in the aquarium trade, but also appears under the name of upside-down catfish.

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