Common name: cotton-spinner

Scientific name: Holothuria tubulosa Gmelin, 1791
Sea cucumber cotton-spinner or tubular sea cucumber (Holothuria tubulosa) on sea bottom, Aegean Sea, Greece, Halkidiki
Underwater a tubular sea cucumber, Holothuria tubulosa, spawning in the Mediterranean sea, Corsica, FranceCotton-spinner (Holothuria tubulosa) in Mediterranean Sea

General information

The Mediterranean Sea Cucumber, Holothuria tubulosa, is a species of sea cucumber found in the Mediterranean Sea and parts of the Atlantic Ocean. It is known for its elongated, tubular body and leathery skin, which is usually dark with lighter tubercles. This echinoderm is an important part of the marine ecosystem, as it helps recycle nutrients by breaking down detritus and other organic matter.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.022 to 1.025
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 organic matter.
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
    cotton-spinner
    Holothuria tubulosa Gmelin, 1791
  8. Synonyms
    Holothuria cavolini Delle Chiaje, 1824
    Holothuria cavolini delle Chiaje, 1824
    Holothuria columnae Cuvier, 1817
    Holothuria columnae Delle Chiaje, 1823
    Holothuria columnae de Blainville, 1821
    Holothuria columnae delle Chiaje, 1824
    Holothuria maxima Delle Chiaje, 1823
    Holothuria pentagnae Delle Chiaje, 1823
    Holothuria petagnae Delle Chiaje, 1824
    Holothuria petagnae delle Chiaje, 1824
    Holothuria tremula Linnaeus, 1767

Care

In the aquarium, Holothuria tubulosa requires a large tank with a deep sand bed and plenty of live rock to provide hiding places and surfaces for grazing. They are sensitive to changes in water quality, so stable conditions and excellent filtration are crucial. It's important to note that they can release toxins when stressed, which can be harmful to tank inhabitants.

Reproduction

Reproduction in Holothuria tubulosa typically involves spawning, where males and females release sperm and eggs into the water column. In an aquarium setting, breeding is rare, but if conditions are ideal, it is possible to observe spawning behavior.

Habitat

This species is commonly found on sandy and muddy bottoms, seagrass beds, and rocky substrates. They are often seen partially buried in the substrate with only their feeding tentacles exposed. In the wild, they can be found at depths ranging from shallow waters to about 100 meters.