Definition
A 'cardinalfish' is a common name for fishes belonging to the family Apogonidae. Think of them as the tiny, red-robed choir singers 🎶 of the coral reef. These fish are typically small and brightly colored, often displaying vibrant red hues. They are found in tropical and subtropical waters worldwide. Many species exhibit mouthbrooding behavior, with males incubating eggs in their mouths. They are popular in the aquarium trade. Cardinalfish play an important role in reef ecosystems.