Definition of upside-down catfish in English:
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
- This fish is seen far less often in the aquarium trade, but also appears under the name of upside-down catfish.
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Spain
Most popular in Malaysia