Common name: Blue Velvet Sea Squirt

Scientific name: Trididemnum pigmentatum Kott, 2001

General information

The Blue Velvet Sea Squirt, scientifically known as Trididemnum pigmentatum, is a captivating tunicate commonly found in reef aquariums. Tunicates are a group of marine invertebrates that have a unique outer covering called a tunic, which is composed of a cellulose-like substance. This species is particularly noted for its vibrant blue coloration and velvety appearance, making it a visually appealing addition to any marine setup.

Details

Recommended minimum tank volume
100 liter (26 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
5 cm (2″)
Care level
Moderate to easy Requires stable conditions
Diet
Planktivore Feeds on microplankton in water
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
    Didemnid Tunicates
    Didemnidae
  6. Genus
    Trididemnum Tunicate
    Trididemnum
  7. Species
    Blue Velvet Sea Squirt
    Trididemnum pigmentatum Kott, 2001

Care

Caring for Trididemnum pigmentatum requires a well-established aquarium with stable water conditions. They are filter feeders and rely on water flow to bring them food particles. It is essential to maintain good water quality and provide moderate to strong water flow to ensure they receive adequate nutrition. They do not require additional feeding if the tank has a sufficient amount of microorganisms for them to filter out.

Reproduction

In the aquarium, Trididemnum pigmentatum can reproduce both sexually and asexually. Sexual reproduction involves the release of gametes into the water column, while asexual reproduction occurs through budding, where new individuals grow directly from the parent organism. This can lead to the sea squirt spreading across the aquarium surfaces if conditions are favorable.

Habitat

Trididemnum pigmentatum is typically found in tropical and subtropical oceans, often attached to hard substrates such as rocks, coral rubble, or the shells of other marine organisms. In the wild, they inhabit various depths, often forming colonies that contribute to the biodiversity of the reef ecosystem.