Common name: Evermann's Cardinalfish

General Information

The Evermann's Cardinalfish, scientifically known as Zapogon evermanni, is a fascinating and lesser-known species in the aquarium trade. This nocturnal fish is part of the Apogonidae family and is recognized for its striking appearance and reclusive behavior. Its body is adorned with a reddish-pink hue, often with subtle iridescent highlights, making it a visually appealing addition to a peaceful marine aquarium.

Native to the tropical and subtropical waters of the Western Atlantic, including the Gulf of Mexico and the Caribbean, this species is typically found in deeper reef environments. Its natural habitat consists of caves, crevices, and overhangs, where it seeks shelter during the day and emerges at night to feed. This cryptic lifestyle makes it a unique choice for aquarists looking to replicate a more naturalistic reef environment.

While not as commonly encountered in the aquarium trade as some other cardinalfish species, Zapogon evermanni is occasionally available through specialized marine fish suppliers. Its rarity and unique behavior make it a prized specimen for dedicated hobbyists.

Care

Evermann's Cardinalfish require a well-established aquarium with plenty of hiding spots, such as live rock formations, caves, and overhangs. These features help replicate their natural habitat and provide the security they need to thrive. They are best kept in dimly lit aquariums or tanks with subdued lighting, as they are nocturnal and prefer low-light conditions.

A peaceful community tank is ideal for this species, as it is shy and may be outcompeted for food by more aggressive tank mates. Stable water parameters and regular maintenance are essential to ensure their health and longevity.

Diet and Feeding

In the wild, Zapogon evermanni primarily feeds on zooplankton and small invertebrates. In captivity, they should be offered a varied diet that includes high-quality frozen or live foods such as mysis shrimp, brine shrimp, and finely chopped seafood. They may also accept small pellet or flake foods, but these should be supplemented with protein-rich options to meet their nutritional needs.

Feed them once or twice daily, preferably during the evening or night when they are most active. Observing their feeding behavior can help ensure they are receiving adequate nutrition, especially in a community tank setting.

Behavior and Compatibility

Evermann's Cardinalfish are peaceful and shy, making them suitable for community tanks with other non-aggressive species. They are best kept in small groups or pairs, as they exhibit social behavior and feel more secure in the presence of conspecifics. However, avoid housing them with overly aggressive or boisterous tank mates, as this can cause stress and lead to health issues.

Their nocturnal nature means they are most active during the evening and night, often retreating to their hiding spots during the day. Providing a dimly lit environment or areas of shade can encourage more natural behavior.

Reproduction

As with many cardinalfish species, Zapogon evermanni exhibits mouthbrooding behavior, where the male carries and protects the eggs in his mouth until they hatch. Breeding in captivity is rare but possible under the right conditions. A separate breeding tank with stable water parameters and plenty of hiding spots can help encourage spawning. Providing a high-quality diet rich in protein is also essential for successful reproduction.

Health and Common Issues

Evermann's Cardinalfish are relatively hardy when provided with proper care and a stable environment. However, they can be susceptible to common marine diseases such as ich and bacterial infections. Quarantining new additions and maintaining excellent water quality are key preventive measures.

When selecting a specimen, look for active individuals with vibrant coloration and no visible signs of disease or injury. Avoid fish that appear lethargic or have damaged fins, as these may indicate underlying health issues.

Habitat

Zapogon evermanni is native to the Western Atlantic, including the Gulf of Mexico and the Caribbean Sea. It inhabits deeper reef environments, often at depths ranging from 20 to 100 meters (65 to 330 feet). These areas are characterized by caves, crevices, and overhangs, which provide shelter and protection from predators.

To replicate their natural habitat in captivity, aquarists should focus on creating a dimly lit environment with plenty of live rock and hiding spots. Moderate water flow and stable conditions will help ensure their well-being.