Common name: Scrawled Cowfish

General Information

The Scrawled Cowfish, scientifically known as Acanthostracion quadricornis, is a fascinating and unique species in the aquarium trade. Its name is derived from the distinctive horn-like projections on its head and its striking, scrawled pattern of blue and yellow markings. This species is a member of the boxfish family and is known for its rigid, box-like body shape.

While not as common as some other species, the Scrawled Cowfish is appreciated for its unusual appearance and the challenge it presents to aquarists. It requires specific care and attention, making it more suitable for experienced hobbyists.

Care

Caring for a Scrawled Cowfish can be a rewarding experience for those up to the challenge. They require a spacious tank with plenty of swimming room due to their unique body shape and size. A minimum tank size of 400 liters is recommended to provide adequate space for movement.

The tank should replicate their natural reef environment, with live rock and sandy substrate. However, be cautious with decorations, as cowfish can release toxins when stressed, which can be harmful to other tank inhabitants.

Diet and Feeding

Scrawled Cowfish are omnivorous, with a diet consisting of small invertebrates, algae, and sponges in the wild. In captivity, they should be fed a varied diet that includes high-quality marine pellets, mysis shrimp, brine shrimp, and chopped seafood.

Feeding should occur once or twice daily, ensuring that the cowfish is receiving a balanced diet to maintain its health and vibrant coloration.

Behavior and Compatibility

The Scrawled Cowfish is generally peaceful but can be territorial, especially in smaller tanks. They are best kept in a species-specific setup or with other peaceful tank mates. Avoid housing them with aggressive species that may stress them.

Cowfish have a unique defense mechanism where they can release toxins when threatened or stressed. This can be dangerous in a closed aquarium system, so care should be taken to minimize stress and avoid aggressive tank mates.

Health and Common Issues

Scrawled Cowfish can live up to 8-12 years in captivity with proper care. Maintaining stable water conditions and a balanced diet is crucial to their health.

When selecting a Scrawled Cowfish, look for individuals with clear eyes, intact fins, and active behavior. Avoid fish that appear lethargic or have visible signs of disease.

Regular tank maintenance and monitoring for signs of stress or illness can help prevent common health issues. Ensure proper filtration and avoid overcrowding to maintain water quality.

Habitat

The Scrawled Cowfish is native to the western Atlantic Ocean, ranging from Massachusetts in the United States to Brazil, including the Gulf of Mexico and the Caribbean Sea. They inhabit coral reefs, seagrass beds, and sandy areas, typically at depths of 2 to 50 meters.

They prefer warm, tropical waters with plenty of hiding spots and open swimming areas. Replicating these conditions in the aquarium can help them thrive.