Common name: Common Cuttlefish

Scientific name: Sepia officinalis Linnaeus, 1758

General Information

The Common Cuttlefish, scientifically known as Sepia officinalis, is a fascinating cephalopod known for its remarkable ability to change color and texture. This species is a favorite among marine enthusiasts due to its intelligence, engaging behavior, and unique appearance. Native to the eastern North Atlantic, including the Mediterranean Sea, Sepia officinalis is often found in sandy or muddy substrates where it can easily camouflage itself.

Cuttlefish have been a subject of interest not only for aquarists but also for researchers studying their complex nervous systems and behavior. Their ability to rapidly alter their skin color is not just for camouflage but also for communication and predation, making them a captivating species to observe.

Details

Estimated price
Moderate
Recommended minimum tank volume
300 liter (79 gallons)
Salinity
S.G. 1.025 to 1.026
Temperature
16 to 24 °C (61 to 75 °F)
Acidity
pH 8 to 8.4
Average size
45 cm (1′6″)
Care level
Moderate to difficult Requires stable water conditions and a spacious tank
Diet
Carnivore Feeds on crustaceans and small fish; live food preferred
Reefsafe
No May eat small fish and invertebrates
Aggression
Semi aggresive Can be territorial, especially in smaller environments
Captive bred
Yes Captive breeding programs are established, though challenging
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
    Cuttlefish
    Sepiida
  5. Family
    Cuttlefish
    Sepiidae
  6. Genus
    Cuttlefish
    Sepia
  7. Species
    Common Cuttlefish
    Sepia officinalis Linnaeus, 1758
  8. Synonyms
    Sepia filliouxi Lafont, 1869
    Sepia fischeri Lafont, 1871
    Sepia mediterranea Ninni, 1884
    Sepia officinalis mediterranea Ninni, 1884
    Sepia officinalis officinalis Linnaeus, 1758
    Sepia rugosa Bowdich, 1822
    Sepia veranyi Lagatu, 1888
    Sepia vicellius Gray, 1849
    Sepia zebrina Risso, 1854
  9. Source: GBIF | Global Biodiversity Information Facility

Care

Keeping a Common Cuttlefish in captivity requires a well-maintained marine environment that mimics its natural habitat. They need a spacious tank with plenty of hiding spots and soft substrates to allow for natural behavior such as burrowing. Cuttlefish are sensitive to changes in water quality, so maintaining stable parameters is crucial.

Diet and Feeding

Sepia officinalis is a carnivorous species, feeding primarily on small crustaceans, fish, and other mollusks. In captivity, they should be offered a diet of live or frozen foods, such as shrimp and small fish, to stimulate their natural hunting instincts.

Feeding should occur once or twice daily, with care taken to ensure that the cuttlefish consumes its food promptly to avoid water quality issues.

Behavior and Compatibility

Common Cuttlefish are known for their curious and intelligent nature. They are generally solitary creatures and can become territorial, especially in smaller environments. Due to their specialized care requirements and potential aggression, they are best kept alone or with other non-aggressive species that do not compete for the same food sources.

Reproduction

Breeding Sepia officinalis in captivity can be challenging but rewarding. They are known for their unique mating rituals, which involve elaborate displays of color changes. Females lay eggs in clusters, attaching them to substrates within the tank. The eggs require careful monitoring and stable conditions to hatch successfully.

Health and Common Issues

Common Cuttlefish can live up to two years in captivity, provided they receive proper care. They are susceptible to stress and changes in water quality, which can lead to health issues. Regular monitoring of water parameters and ensuring a balanced diet can help prevent common ailments.

When selecting a cuttlefish, look for active individuals with clear eyes and healthy skin. Avoid specimens that appear lethargic or have damaged tentacles.

Habitat

In the wild, Sepia officinalis inhabits a range of environments from shallow coastal waters to deeper offshore areas. They prefer habitats with plenty of hiding spots and soft substrates where they can easily camouflage themselves. In captivity, replicating these conditions with live rock and sandy substrates can help them feel secure and exhibit natural behaviors.