Common name: Black-blotched porcupinefish

Scientific name: Diodon liturosus Shaw, 1804
colorful Black-blotched porcupinefish (diodon liturosus)
black-blotched porcupinefish (Diodon liturosus) underwater at maldivesBlack blotched Porcupinefish - Diodon liturosus

General information

The Black-blotched Porcupinefish, scientifically known as Diodon liturosus, is a distinctive and charismatic species that captures the attention of many aquarists. This fish is known for its ability to inflate its body as a defense mechanism against predators. When threatened, it can take in water or air to increase its size dramatically, displaying its long spines that deter potential threats. The body of Diodon liturosus is covered with black spots and blotches, which can vary in intensity and provide camouflage among the reef.

Details

Recommended minimum tank volume
750 liter (200 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
50 cm (1′8″)
Care level
Moderate to easy Needs large tank, prone to stress
Diet
Carnivore Prefers crustaceans, mollusks
Social
Solo Territorial, best kept alone
Reefsafe
No May nip at slow fish, inverts
Aggression
Semi aggresive Can be aggressive if provoked
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Pufferfish
    Tetraodontiformes
  5. Family
    Porcupinefish
    Diodontidae
  6. Genus
    Porcupinefish
    Diodon
  7. Species
    Black-blotched porcupinefish
    Diodon liturosus Shaw, 1804
  8. Synonyms
    Diodon bleekeri Günther, 1910
    Diodon literosus Shaw, 1804
    Diodon lituratus Shaw, 1804
    Diodon maculatus Duméril, 1855

Care

Caring for a Black-blotched Porcupinefish requires a spacious tank due to its potential size, reaching up to 65 centimeters in length. They are not reef-safe as they may nibble on or damage corals and invertebrates. A fish-only tank with plenty of hiding places and room to swim is ideal. They are generally peaceful but may be aggressive towards smaller fish or conspecifics. A varied diet of meaty foods, including shrimp, squid, and fish, is essential for their health.

Reproduction

In the wild, Diodon liturosus engages in a unique spawning behavior where males and females release gametes into the water column, resulting in external fertilization. Little is known about their breeding habits in captivity, and successful breeding is rare in home aquariums.

Habitat

The Black-blotched Porcupinefish is found in tropical and subtropical oceans around the world. They prefer reef environments, often seen in lagoons and seaward reefs. They can be found at depths ranging from shallow waters to over 50 meters deep. Their distribution includes the Indo-Pacific region, from the Red Sea and East Africa to the Central Pacific.