Common name: Bannwarth's Sea Cucumber

Scientific name: Actinopyga bannwarthi Panning, 1944

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

  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
    Actinopyga
  7. Species
    Bannwarth's Sea Cucumber
    Actinopyga bannwarthi Panning, 1944
  8. Synonyms
    Actinopyga 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.