Common name: Devil scorpionfish

Scientific name: Scorpaenopsis diabolus (Cuvier, 1829)
Devil Scorpionfish Scorpaenopsis diabolusDevil scorpionfish, Scorpaenopsis diabolus, Lembeh Strait, Indonesia
Blue devil scorpionfish (Scorpaenopsis diabolus) or false stonefish near Anilao, Philippines.  Underwater photography and travel.Devil scorpionfish camouflages with its surroundings - Scorpaenopsis diabolus

General information

The False Scorpionfish, also known as the Devil Scorpionfish, is a species that commands attention due to its unique and somewhat intimidating appearance. Scorpaenopsis diabolus is known for its excellent camouflage abilities, which allow it to blend seamlessly with its surroundings. This fish is a master of disguise, with a mottled pattern that mimics the rocky or coral substrates it inhabits.

Despite its fierce look, the False Scorpionfish is relatively docile and can be a fascinating addition to a larger fish-only or predator tank. It is important to note that, like other scorpionfish, it has venomous spines that can inflict painful stings, so caution is advised when handling or performing tank maintenance.

Details

Recommended minimum tank volume
300 liter (79 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
26 cm (10″)
Care level
Moderate to easy Requires hiding spots
Diet
Carnivore Enjoys meaty foods, frozen mysis
Social
Solo Territorial, best kept alone
Reefsafe
Yes
Aggression
Semi aggresive May be aggressive to small fish
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
    Scorpionfishes
    Scorpaeniformes
  5. Family
    Scorpionfishes
    Scorpaenidae
  6. Genus
    Scorpionfish
    Scorpaenopsis
  7. Species
    Devil scorpionfish
    Scorpaenopsis diabolus (Cuvier, 1829)
  8. Synonyms
    ? diabolis Cuvier, 1829
    Scorpaena diabolis (Cuvier, 1829)
    Scorpaena diabolus Cuvier, 1829
    Scorpaenopsis catocala Jordan & Evermann, 1903
    Scorpaenopsis diabolis (Cuvier, 1829)

Care

The care of Scorpaenopsis diabolus requires a spacious tank with ample hiding places and a sandy or rubble substrate to mimic its natural habitat. This species is not overly active, so the focus should be on providing a stable environment with pristine water conditions. They are carnivorous and prefer a diet of meaty foods such as shrimp, squid, and small fish. It is essential to feed them with tongs or a feeding stick to avoid accidental stings.

Reproduction

In the wild, False Scorpionfish are solitary creatures and only come together to breed. There is limited information on their breeding habits in home aquariums, as they are not commonly bred in captivity. However, they are known to be egg-layers, with the female releasing eggs into the water column to be fertilized by the male.

Habitat

Scorpaenopsis diabolus is found in the Indo-Pacific region, from the Red Sea and East Africa to Samoa, and north to Japan. They typically inhabit coral reefs, rocky outcrops, and rubble slopes, often lying motionless and blending into the background. They can be found at depths ranging from shallow waters to about 35 meters deep.