Common name: Blue Velvet Sea Squirt
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
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassSea SquirtsAscidiacea
- OrderSea SquirtsEnterogona
- FamilyDidemnid TunicatesDidemnidae
- GenusTrididemnum TunicateTrididemnum
- SpeciesBlue Velvet Sea SquirtTrididemnum 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.