Common name: Bannwarth's Sea Cucumber
General information
Bannwarth's Sea Cucumber, scientifically known as Actinopyga bannwarthi, is a lesser-known species among reefkeeping enthusiasts but can be a fascinating addition to a mature reef aquarium. This echinoderm is characterized by its elongated, leathery body and distinct tentacles around its mouth, which it uses for feeding.
Details
- Recommended minimum tank volume
- 200 liter (53 gallons)
- Salinity
- S.G. 1.023 to 1.025
- Temperature
- 24 to 27 °C (75 to 81 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 30 cm (1′)
- Care level
- Moderate to easy Sensitive to water quality
- Diet
- Detritivore Feeds on detritus and organics
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassSea CucumbersHolothuroidea
- OrderSea CucumbersAspidochirotida
- FamilySea CucumbersHolothuriidae
- GenusSea CucumberActinopyga
- SpeciesBannwarth's Sea CucumberActinopyga bannwarthi Panning, 1944
- SynonymsActinopyga serratidens bannwarthi Panning, 1944
Care
Actinopyga bannwarthi requires a well-established aquarium with a deep sand bed and plenty of live rock to thrive. They are detritivores, consuming organic matter and microorganisms within the sand. Stable water quality and the absence of potential predators are crucial for their well-being.
Reproduction
Sea cucumbers, including Actinopyga bannwarthi, have a unique reproductive strategy. They can reproduce both sexually, by releasing sperm and eggs into the water column, and asexually, through a process called fission. In the aquarium, sexual reproduction is less common, but hobbyists may occasionally observe small offspring if conditions are favorable.
Habitat
Actinopyga bannwarthi is found in the Indo-Pacific region, typically dwelling in shallow waters on sandy bottoms or seagrass beds. They are often hidden during the day and more active at night when they feed.