The term PERCH-LIKE FISH can be broken down into two crossword solutions: BASS (4 letters) and RUFFE (5 letters). BASS are a type of freshwater fish that are found in many parts of the world. They are known for their large size and are popular among anglers. Ruffe are a species of perch-like fish native to Europe and Asia. They have a distinctive dark stripe along their sides and are often found in shallow, weedy areas.