Common name: Mimic Octopus

Scientific name: Thaumoctopus mimicus Norman & Hochberg, 2005

General Information

The Mimic Octopus (Thaumoctopus mimicus) is a fascinating cephalopod known for its incredible ability to impersonate other marine animals. This species was first discovered in the shallow waters of Indonesia in the late 1990s and has since captivated scientists and hobbyists alike with its unique mimicry skills. Unlike most octopuses, which rely primarily on camouflage, the Mimic Octopus can alter its shape, color, and behavior to imitate a variety of species, including lionfish, flatfish, and sea snakes. This remarkable talent not only serves as a defense mechanism against predators but also aids in hunting.

The Mimic Octopus is relatively uncommon in the aquarium trade due to its specialized care requirements and short lifespan. However, it remains a subject of interest for marine biologists and enthusiasts who appreciate its complex behavior and adaptability.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
60 cm (2′)
Care level
Very difficult Suitable only for experienced aquarists due to specialized care needs
Diet
Carnivore Feeds on small crustaceans and fish, requiring live or frozen marine foods
Reefsafe
Yes
Aggression
Peaceful Solitary and peaceful, but best housed alone
Captive bred
No
IUCN Red List
EX
EW
CR
EN
VU
NT
LC

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Mollusks
    Mollusca
  3. Class
    Cephalopods
    Cephalopoda
  4. Order
    Octopus
    Octopoda
  5. Family
    Octopus
    Octopodidae
  6. Genus
    Mimic Octopus
    Thaumoctopus
  7. Species
    Mimic Octopus
    Thaumoctopus mimicus Norman & Hochberg, 2005
  8. Source: GBIF | Global Biodiversity Information Facility

Care

Caring for a Mimic Octopus requires a well-established, species-specific aquarium. These octopuses thrive in environments that replicate their natural habitat, with sandy substrates and plenty of hiding spots. They are sensitive to water quality and changes in environmental conditions, making them suitable only for experienced aquarists. A secure lid is essential, as these curious creatures are known escape artists.

Diet and Feeding

Mimic Octopuses are carnivorous, feeding primarily on small crustaceans and fish in the wild. In captivity, they require a diet rich in live or frozen marine foods such as shrimp, crabs, and fish. Feeding should be done regularly, ensuring the octopus maintains its energy levels and vibrant health.

Behavior and Compatibility

The Mimic Octopus is solitary and exhibits a range of behaviors that make it a captivating aquarium inhabitant. It is best housed alone due to its specific environmental needs and potential incompatibility with other species. Its mimicry not only serves as a defense but also as a way to approach prey stealthily.

Symbiosis

While the Mimic Octopus does not engage in symbiotic relationships like some other marine species, its mimicry can be seen as a form of ecological interaction, as it impacts the behavior of both predators and prey within its environment.

Health and Common Issues

The Mimic Octopus has a relatively short lifespan of about 1.5 years, which is typical for many octopus species. Maintaining optimal water quality and providing a stress-free environment are crucial for its health. Regular monitoring for signs of stress or illness, such as changes in color or behavior, is essential.

Habitat

Native to the tropical Indo-Pacific region, the Mimic Octopus inhabits shallow, muddy estuaries and coastal waters. These environments provide the perfect backdrop for its mimicry skills, allowing it to blend seamlessly with its surroundings while avoiding predators.