Complex sentence: In the aquarium hobby, this fish may be known as the giant upside-down catfish; it is peaceful and hardy fish, but may be bullied by more aggressive "Synodontis" species.
Split into simpler sentences: In the aquarium hobby, this fish may be known as the giant upside-down catfish. It is peaceful and hardy fish, but may be bullied by more aggressive "Synodontis" species.