Common name: impatient sea cucumber
General information
The Donkey Dung Sea Cucumber, scientifically known as Holothuria impatiens, is a species of sea cucumber that is often sought after by advanced reef hobbyists for its detritivorous habits. This echinoderm is known for its ability to consume large amounts of organic waste, which helps to maintain water quality in the aquarium.
Its appearance is quite distinctive, with a leathery skin and an elongated body that can vary in color from dark brown to black. The name 'Donkey Dung' humorously refers to its shape and color, resembling a piece of dung.
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 for burrowing.
- Diet
- Detritivore Consumes detritus and leftover food.
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
- Conservation statusSource: IUCN Red List
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassSea CucumbersHolothuroidea
- OrderSea CucumbersAspidochirotida
- FamilySea CucumbersHolothuriidae
- GenusSea CucumberHolothuria
- Speciesimpatient sea cucumberHolothuria impatiens (Forskål, 1775)
- SynonymsFistularia impatiens Forsskål, 1775Holothuria botellus Selenka, 1867Holothuria fulva Quoy & Gaimard, 1834Holothuria impatiens bicolor Clark, 1938Holothuria impatiens concolor Clark, 1921Holothuria impatiens lutea Clark, 1921Holothuria impatiens pulchra Clark, 1921Holothuria impatiens bicolor Clark, 1938Holothuria impatiens concolor Clark, 1921Holothuria impatiens lutea Clark, 1921Holothuria impatiens pulchra Clark, 1921Holothuria ophidiana Quoy & Gaimard, 1834
Care
Holothuria impatiens requires a spacious tank with a deep sand bed and plenty of live rock to thrive. It is sensitive to changes in water quality, so stable conditions and excellent filtration are crucial. This species is not recommended for beginners due to its specific care requirements and sensitivity to environmental changes.
Reproduction
Reproduction in Holothuria impatiens is typically sexual, with individuals releasing eggs and sperm into the water column where fertilization occurs. In the aquarium, breeding is rare, but if conditions are ideal, it is possible to observe spawning behavior.
Symbiosis
While not known for any specific symbiotic relationships, the Donkey Dung Sea Cucumber plays a vital role in the ecosystem by processing detritus and aerating the substrate, which can indirectly benefit other tank inhabitants.
Habitat
In the wild, Holothuria impatiens is found in a variety of marine environments, from shallow reefs to deeper waters. They are often seen partially buried in the substrate or moving slowly across the tank floor in search of organic matter to consume.