Saltwater Fish
Chilomycterus antillarum
Chilomycterus antillarum
(Web Burrfish)

Species Description…

Scientific Name: Chilomycterus antillarum
Common Name: Web Burrfish
Species Group: Porcupinefish
Habitat: Reef Safe with Caution
Care Level: Intermediate
Temperament: Semi-aggressive
Diet Type: Carnivore
Role in Aquarium: Showpiece Fish
Max Fish Length: 10 (inches)
Min Aquarium Size: 180 (gallons)
Native Range: Western Atlantic, from Florida to Brazil, including the Caribbean
Chilomycterus Antillarum - The Web Burrfish

Chilomycterus Antillarum (The Web Burrfish)

Overview

  • Native to the Western Atlantic, frequently found in seagrass beds, reefs, and sandy coastal regions.
  • Characterized by its rounded body covered in short, immovable spines and a mottled pattern that provides camouflage.
  • A nocturnal species that remains hidden during the day and becomes more active at night.
  • Typically solitary, but may occasionally be found in loose aggregations.
  • Best suited for a well-established aquarium with ample space, hiding spots, and stable water conditions.

Feeding

  • Carnivorous, primarily feeding on crustaceans, mollusks, and small invertebrates in the wild.
  • Requires a varied diet of hard-shelled foods such as clams, shrimp, and crabs to maintain its beak-like teeth.
  • Adapts well to prepared foods, but fresh seafood options should be offered regularly.
  • Feeding should be done cautiously as overfeeding can lead to health complications.
  • A diet rich in calcium helps support dental health and overall well-being.

Habitat

  • Prefers shallow reef environments, seagrass meadows, and sandy ocean floors.
  • Frequently found near coral rubble and rocky structures that provide shelter from predators.
  • Aquarium setups should include live rock, sand substrates, and sufficient hiding spaces.
  • Requires well-oxygenated water with moderate flow to replicate its natural habitat.
  • Providing shaded areas and dim lighting encourages more natural behaviors.

Fish Care

  • Optimal water temperature: 72-80°F (22-27°C) to maintain a stable environment.
  • Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
  • Requires high-quality filtration to prevent ammonia buildup, as it is sensitive to poor water conditions.
  • Not reef-safe, as it may consume small crustaceans and other invertebrates.
  • Providing ample open space for swimming and secure hiding areas reduces stress.

Compatibility

  • Generally peaceful but may become territorial towards similar species.
  • Compatible with large, non-aggressive fish such as tangs, groupers, and larger wrasses.
  • Should not be housed with small fish or slow-moving invertebrates, as they may become prey.
  • Best kept in a species-only tank or with tankmates that are not easily intimidated.
  • Providing adequate space helps prevent aggression and territorial behavior.

Aquarium Behavior

  • A slow-moving but curious species that enjoys exploring its surroundings.
  • Frequently observed resting on the substrate or near rock formations during the day.
  • Becomes more active during evening hours, searching for food along the tank floor.
  • May puff up when startled or threatened, a defense mechanism used to deter predators.
  • Over time, it may become more interactive with its caretaker, especially during feeding sessions.