Common name: Tiger Tail Sea Cucumber

Scientific name: Holothuria difficilis Semper, 1868
Tiger Tail Sea CucumberTiger Tail Sea Cucumber, Holothuria thomasi, in the Florida Keys National Marine Sanctuary, Florida

General information

The Tiger Tail Sea Cucumber, scientifically known as Holothuria difficilis, is a striking and beneficial addition to the reef aquarium. This species is known for its distinctive dark body with vibrant yellow to orange bands, resembling a tiger's tail. Sea cucumbers play a crucial role in the ecosystem by consuming detritus and organic matter, thus helping to maintain water quality and substrate cleanliness.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8 to 8.4
Average size
30 cm (1′)
Care level
Moderate to easy Needs a deep sand bed to thrive.
Diet
Detritivore Consumes detritus and leftover food.
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Echinoderms
    Echinodermata
  3. Class
    Sea Cucumbers
    Holothuroidea
  4. Order
    Sea Cucumbers
    Aspidochirotida
  5. Family
    Sea Cucumbers
    Holothuriidae
  6. Genus
    Sea Cucumber
    Holothuria
  7. Species
    Tiger Tail Sea Cucumber
    Holothuria difficilis Semper, 1868
  8. Synonyms
    Actinopyga bedfordi Deichmann, 1922
    Actinopyga difficilis Deichmann et al., 1924
    Actinopyga parvula Clark, 1920
    Holothuria altimensis Clark, 1921
    Holothuria frequentamentis Clark, 1902
    Microthele difficilis (Semper, 1868)
    Mulleria lubrica Sluiter, 1894

Care

Tiger Tail Sea Cucumbers require a well-established aquarium with a deep sand bed and plenty of live rock. They are sensitive to changes in water parameters, so stability is key. It's important to ensure that the aquarium does not have aggressive fish or invertebrates that might harm them. They are best suited for larger systems where they can roam without being trapped or injured by equipment.

Reproduction

In the wild, Holothuria difficilis reproduces by releasing eggs and sperm into the water column, a process known as broadcast spawning. In the aquarium, reproduction is rare, but if conditions are ideal, they may spawn, leading to the presence of tiny sea cucumber larvae.

Symbiosis

While not known for specific symbiotic relationships like clownfish and anemones, sea cucumbers do contribute to the overall health of the reef ecosystem. They provide a cleaning service by processing detritus and aerating the sand bed, which benefits other tank inhabitants.

Habitat

Tiger Tail Sea Cucumbers are found in the Indo-Pacific region, typically dwelling on the sea floor of reef environments. They prefer sandy substrates where they can burrow and sift through the sediment to find organic matter to feed on.