Common name: Pycnoclavella diminuta

Scientific name: Pycnoclavella diminuta (Kott, 1957)
Colonian Ascidian Clavelina diminutaAscidian Diversity

General information

Pycnoclavella diminuta is a species of colonial ascidian, or sea squirt, found in tropical marine environments. These small, encrusting organisms are known for their ability to filter feed by drawing in water through their siphons, extracting plankton and other nutrients before expelling the filtered water back into the environment.

Details

Recommended minimum tank volume
30 liter (7.9 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
2 cm (¾″)
Care level
Moderate to easy Prefers moderate flow areas
Diet
Detritivore Feeds on detritus and organics
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Sea Squirts
    Ascidiacea
  4. Order
    Sea Squirts
    Enterogona
  5. Family
    Encrusting Sponge Family
    Pycnoclavellidae
  6. Genus
    Encrusting Sea Squirt
    Pycnoclavella
  7. Species
    Pycnoclavella diminuta
    Pycnoclavella diminuta (Kott, 1957)
  8. Synonyms
    Archidistoma diminutum (Kott, 1957)
    Archidistoma richeri Monniot, F., 1988
    Archidistoma rubripunctum Monniot, F., 1988
    Clavelina diminuta Kott, 1957
    Clavelina nodula Kott, 1972

Care

In the aquarium, Pycnoclavella diminuta requires stable water conditions with low to moderate flow and clean water to thrive. They are filter feeders and benefit from the presence of fine particulate organic matter or phytoplankton in the water column. It's important to avoid placing them in direct, strong water currents, which can prevent them from feeding effectively.

Reproduction

Pycnoclavella diminuta reproduces both sexually and asexually. In sexual reproduction, they release sperm and eggs into the water column, where fertilization occurs. Asexually, they can bud new individuals from the edges of their colonies, allowing for rapid expansion under favorable conditions.

Symbiosis

While not known for engaging in notable symbiotic relationships like some other marine invertebrates, Pycnoclavella diminuta contributes to the overall health of the reef ecosystem by filtering water and providing a food source for some specialized predators.

Habitat

This species is typically found on reef substrates, often in shaded areas or under overhangs to avoid direct sunlight. They are distributed in warm, tropical waters and can be found at various depths, often in association with other benthic organisms.