Related Clues:

• A fish that nags?
• Be a kvetch
• Criticize
• Freshwater fish
• Find fault
• Complain gratingly
• Moan and groan
• Bony fish
• Pick apart
• Complain querulously
• Raise trivial objections
• Petty annoyance
• Cavil
• Keep griping
• Caspian catch