Common name: New zealand sea cucumber
General information
The Sea Cucumber (Australostichopus mollis), also known as the Spotted Sea Cucumber or New Zealand Sea Cucumber, is a marine invertebrate that is gaining popularity in the reefkeeping hobby. This echinoderm is known for its elongated, leathery body and distinctive dark spots against a lighter background. It plays a crucial role in the ecosystem by consuming detritus and helping to recycle nutrients.
Details
- Recommended minimum tank volume
- 100 liter (26 gallons)
- Salinity
- S.G. 1.023 to 1.026
- Temperature
- 20 to 25 °C (68 to 77 °F)
- Acidity
- pH 8 to 8.4
- Average size
- 20 cm (8″)
- Care level
- Moderate to easy Sensitive to water quality.
- Diet
- Detritivore Feeds on detritus and organic matter.
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassSea CucumbersHolothuroidea
- OrderSea CucumbersAspidochirotida
- FamilySea CucumbersStichopodidae
- GenusSea CucumberAustralostichopus
- SpeciesNew zealand sea cucumberAustralostichopus mollis (Hutton, 1872)
- SynonymsHolothuria mollis Hutton, 1872Holothuria robsoni Hutton, 1879Holothuria victoriae Bell, 1887Neostichopus mollis (Hutton, 1872)Stichopus mollis (Hutton, 1872)Stichopus simulans Dendy & Hindle, 1907Stichopus sordidus Théel, 1886
Care
Australostichopus mollis requires a well-established aquarium with a deep sand bed and plenty of live rock to thrive. They are detritivores, feeding on organic matter and biofilm within the substrate. It's important to ensure that the tank is free of potential predators and that the water quality is maintained at high standards, as sea cucumbers are sensitive to changes in water parameters.
Reproduction
In the wild, Australostichopus mollis reproduces by releasing sperm and eggs into the water column, a process known as broadcast spawning. In the aquarium, breeding is less common but can occur if conditions are ideal. The larvae are planktonic before settling to the bottom and developing into juveniles.
Habitat
Australostichopus mollis is found in a range of habitats from shallow intertidal zones to deeper waters, often burying itself in the substrate. It is native to the cooler waters of the Southern Hemisphere, particularly around New Zealand and southeastern Australia.