Common name: bluespotted boxfish

General information

The Yellow Boxfish (Ostracion immaculatus) is a captivating and unique species known for its distinctive box-like shape and bright yellow coloration. Juveniles are especially vibrant, with a more intense yellow hue and black spots that fade as they mature. This species is a member of the family Ostraciidae, which includes boxfishes, cowfishes, and trunkfishes, all characterized by their hard, bony carapaces.

In the wild, Yellow Boxfish are solitary creatures that tend to be shy and reclusive. They are found in a variety of reef environments where they feed on a diet consisting mainly of algae, sponges, and small invertebrates.

Care

Yellow Boxfish require a spacious aquarium with plenty of room to swim and stable water conditions to thrive. They are generally peaceful but can be territorial with their own kind or similar-looking species. It's important to provide a varied diet that includes both meaty foods and vegetable matter to ensure proper nutrition.

One unique aspect of boxfish care is their defense mechanism; when stressed, they can release a toxic substance called ostracitoxin, which can be harmful to other tank inhabitants. Therefore, maintaining a stress-free environment is crucial for their well-being.

Reproduction

Breeding Yellow Boxfish in captivity is quite rare. In the wild, they engage in a unique spawning behavior where the male and female rise to the water's surface to release eggs and sperm. The pelagic larvae that hatch are very different in appearance from the adults and go through a remarkable transformation as they mature.

Habitat

Yellow Boxfish are typically found in the Indo-Pacific region, from the eastern coast of Africa to the central Pacific. They inhabit coral reefs and lagoons, often seen at depths ranging from shallow waters to about 50 meters. Their natural habitat includes areas with abundant live rock and coral where they can seek shelter and forage for food.